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2024-03-20ALSA: control: Fix unannotated kfree() cleanupTakashi Iwai
The recent conversion to the automatic kfree() forgot to mark a variable with __free(kfree), leading to memory leaks. Fix it. Fixes: 1052d9882269 ("ALSA: control: Use automatic cleanup of kfree()") Reported-by: Mirsad Todorovac <mirsad.todorovac@alu.unizg.hr> Closes: https://lore.kernel.org/r/c1e2ef3c-164f-4840-9b1c-f7ca07ca422a@alu.unizg.hr Message-ID: <20240320062722.31325-1-tiwai@suse.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2024-03-17ALSA: core: add kunitconfigTakashi Sakamoto
It is helpful to add .kunitconfig if we work with the tools provided by KUnit project. The file describes the series of kernel configurations to satisfy the dependency to build the target test. For example: $ ./tools/testing/kunit/kunit.py run --arch=arm64 --cross_compile=aarch64-linux-gnu- --kunitconfig=sound/core/ [11:35:13] Configuring KUnit Kernel ... Regenerating .config ... Populating config with: $ make ARCH=arm64 O=.kunit olddefconfig CROSS_COMPILE=aarch64-linux-gnu- [11:35:19] Building KUnit Kernel ... Populating config with: $ make ARCH=arm64 O=.kunit olddefconfig CROSS_COMPILE=aarch64-linux-gnu- Building with: $ make ARCH=arm64 O=.kunit --jobs=8 CROSS_COMPILE=aarch64-linux-gnu- [11:37:35] Starting KUnit Kernel (1/1)... [11:37:35] ============================================================ Running tests with: $ qemu-system-aarch64 -nodefaults -m 1024 -kernel .kunit/arch/arm64/boot/Image.gz -append 'kunit.enable=1 console=ttyAMA0 kunit_shutdown=reboot' -no-reboot -nographic -serial stdio -machine virt -cpu max,pauth-impdef=on [11:37:35] ============== sound-core-test (10 subtests) =============== [11:37:35] [PASSED] test_phys_format_size [11:37:35] [PASSED] test_format_width [11:37:35] [PASSED] test_format_endianness [11:37:35] [PASSED] test_format_signed [11:37:35] [PASSED] test_format_fill_silence [11:37:35] [PASSED] test_playback_avail [11:37:35] [PASSED] test_capture_avail [11:37:35] [PASSED] test_card_set_id [11:37:35] [PASSED] test_pcm_format_name [11:37:35] [PASSED] test_card_add_component [11:37:35] ================= [PASSED] sound-core-test ================= [11:37:35] ============================================================ [11:37:35] Testing complete. Ran 10 tests: passed: 10 [11:37:35] Elapsed time: 142.333s total, 5.617s configuring, 136.047s building, 0.630s running Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Message-ID: <20240317024050.588370-1-o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2024-03-15ALSA: timer: Fix missing irq-disable at closingTakashi Iwai
The conversion to guard macro dropped the irq-disablement at closing mistakenly, which may lead to a race. Fix it. Fixes: beb45974dd49 ("ALSA: timer: Use guard() for locking") Reported-by: syzbot+28c1a5a5b041a754b947@syzkaller.appspotmail.com Closes: http://lore.kernel.org/r/0000000000000b9a510613b0145f@google.com Message-ID: <20240315101447.18395-1-tiwai@suse.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2024-03-11Merge branch 'for-next' into for-linusTakashi Iwai
Prep for 6.9 merge. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2024-03-01ALSA: hwdep: Move put_user() call out of scoped_guard() in ↵Nathan Chancellor
snd_hwdep_control_ioctl() Clang prior to 17.0.0 has a bug in its asm goto jump scope analysis to determine that no variables with the cleanup attribute are skipped by an indirect jump. Instead of only checking the scope of each label that is a possible target of each asm goto statement, it checks the scope of every label, which can cause an error when a variable with the cleanup attribute is used between two asm goto statements with different scopes, even if they have completely different label targets: sound/core/hwdep.c:273:8: error: cannot jump from this asm goto statement to one of its possible targets if (get_user(device, (int __user *)arg)) ^ arch/powerpc/include/asm/uaccess.h:295:5: note: expanded from macro 'get_user' __get_user(x, _gu_addr) : \ ^ arch/powerpc/include/asm/uaccess.h:283:2: note: expanded from macro '__get_user' __get_user_size_allowed(__gu_val, __gu_addr, __gu_size, __gu_err); \ ^ arch/powerpc/include/asm/uaccess.h:199:3: note: expanded from macro '__get_user_size_allowed' __get_user_size_goto(x, ptr, size, __gus_failed); \ ^ arch/powerpc/include/asm/uaccess.h:187:10: note: expanded from macro '__get_user_size_goto' case 1: __get_user_asm_goto(x, (u8 __user *)ptr, label, "lbz"); break; \ ^ arch/powerpc/include/asm/uaccess.h:158:2: note: expanded from macro '__get_user_asm_goto' asm_volatile_goto( \ ^ include/linux/compiler_types.h:366:33: note: expanded from macro 'asm_volatile_goto' #define asm_volatile_goto(x...) asm goto(x) ^ sound/core/hwdep.c:291:9: note: possible target of asm goto statement if (put_user(device, (int __user *)arg)) ^ arch/powerpc/include/asm/uaccess.h:66:5: note: expanded from macro 'put_user' __put_user(x, _pu_addr) : -EFAULT; \ ^ arch/powerpc/include/asm/uaccess.h:52:9: note: expanded from macro '__put_user' \ ^ sound/core/hwdep.c:276:4: note: jump bypasses initialization of variable with __attribute__((cleanup)) scoped_guard(mutex, &register_mutex) { ^ include/linux/cleanup.h:169:20: note: expanded from macro 'scoped_guard' for (CLASS(_name, scope)(args), \ To avoid this issue, move the put_user() call out of the scoped_guard() scope, which allows the asm goto scope analysis to see that the variable with the cleanup attribute will never be skipped by the asm goto statements. There should be no functional change because prior to the refactoring, put_user() was not called under register_mutex, so this call does not even need to be in the scoped_guard() in the first place. Fixes: e6684d08cc19 ("ALSA: hwdep: Use guard() for locking") Closes: https://github.com/ClangBuiltLinux/linux/issues/2003 Signed-off-by: Nathan Chancellor <nathan@kernel.org> Link: https://lore.kernel.org/r/20240301-fix-snd-hwdep-guard-v1-1-6aab033f3f83@kernel.org Signed-off-by: Takashi Iwai <tiwai@suse.de>
2024-02-28ALSA: control_led: Use guard() for lockingTakashi Iwai
We can simplify the code gracefully with new guard() macro and co for automatic cleanup of locks. A couple of functions that use snd_card_ref() and *_unref() are also cleaned up with a defined class, too. Only the code refactoring, and no functional changes. Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/20240227085306.9764-25-tiwai@suse.de
2024-02-28ALSA: pcm: oss: Use guard() for setupTakashi Iwai
The setup_mutex in PCM oss code can be simplified with guard(). (params_lock is tough and not trivial to covert, though.) Only the code refactoring, and no functional changes. Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/20240227085306.9764-24-tiwai@suse.de
2024-02-28ALSA: pcm: Use guard() for PCM stream locksTakashi Iwai
Define guard() usage for PCM stream locking and use it in appropriate places. The pair of snd_pcm_stream_lock() and snd_pcm_stream_unlock() can be presented with guard(pcm_stream_lock) now. Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/20240227085306.9764-23-tiwai@suse.de
2024-02-28ALSA: pcm: Use guard() for lockingTakashi Iwai
We can simplify the code gracefully with new guard() macro and co for automatic cleanup of locks. Only the code refactoring, and no functional changes. Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/20240227085306.9764-22-tiwai@suse.de
2024-02-28ALSA: seq: prioq: Use guard() for lockingTakashi Iwai
We can simplify the code gracefully with new guard() macro and co for automatic cleanup of locks. Only the code refactoring, and no functional changes. Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/20240227085306.9764-21-tiwai@suse.de
2024-02-28ALSA: seq: virmidi: Use guard() for lockingTakashi Iwai
We can simplify the code gracefully with new guard() macro and co for automatic cleanup of locks. Only the code refactoring, and no functional changes. Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/20240227085306.9764-20-tiwai@suse.de
2024-02-28ALSA: seq: ump: Use guard() for lockingTakashi Iwai
We can simplify the code gracefully with new guard() macro and co for automatic cleanup of locks. Only the code refactoring, and no functional changes. Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/20240227085306.9764-19-tiwai@suse.de
2024-02-28ALSA: seq: midi: Use guard() for lockingTakashi Iwai
We can simplify the code gracefully with new guard() macro and co for automatic cleanup of locks. Only the code refactoring, and no functional changes. Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/20240227085306.9764-18-tiwai@suse.de
2024-02-28ALSA: seq: timer: Use guard() for lockingTakashi Iwai
We can simplify the code gracefully with new guard() macro and co for automatic cleanup of locks. Only the code refactoring, and no functional changes. Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/20240227085306.9764-17-tiwai@suse.de
2024-02-28ALSA: seq: queue: Use guard() for lockingTakashi Iwai
We can simplify the code gracefully with new guard() macro and co for automatic cleanup of locks. Only the code refactoring, and no functional changes. Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/20240227085306.9764-16-tiwai@suse.de
2024-02-28ALSA: seq: ports: Use guard() for lockingTakashi Iwai
We can simplify the code gracefully with new guard() macro and co for automatic cleanup of locks. Only the code refactoring, and no functional changes. Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/20240227085306.9764-15-tiwai@suse.de
2024-02-28ALSA: seq: memory: Use guard() for lockingTakashi Iwai
We can simplify the code gracefully with new guard() macro and co for automatic cleanup of locks. Only the code refactoring, and no functional changes. Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/20240227085306.9764-14-tiwai@suse.de
2024-02-28ALSA: seq: fifo: Use guard() for lockingTakashi Iwai
We can simplify the code gracefully with new guard() macro and co for automatic cleanup of locks. Only the code refactoring, and no functional changes. Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/20240227085306.9764-13-tiwai@suse.de
2024-02-28ALSA: core: Use guard() for lockingTakashi Iwai
We can simplify the code gracefully with new guard() macro and co for automatic cleanup of locks. Only the code refactoring, and no functional changes. Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/20240227085306.9764-12-tiwai@suse.de
2024-02-28ALSA: jack: Use guard() for lockingTakashi Iwai
We can simplify the code gracefully with new guard() macro and co for automatic cleanup of locks. Only the code refactoring, and no functional changes. Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/20240227085306.9764-11-tiwai@suse.de
2024-02-28ALSA: rawmidi: Use guard() for lockingTakashi Iwai
We can simplify the code gracefully with new guard() macro and co for automatic cleanup of locks. There are a few remaining explicit mutex and spinlock calls, and those are the places where the temporary unlock/relocking happens -- which guard() doens't cover well yet. Only the code refactoring, and no functional changes. Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/20240227085306.9764-10-tiwai@suse.de
2024-02-28ALSA: control: Use guard() for lockingTakashi Iwai
We can simplify the code gracefully with new guard() macro and co for automatic cleanup of locks. The lops calls under multiple rwsems are factored out as a simple macro, so that it can be called easily from snd_ctl_dev_register() and snd_ctl_dev_disconnect(). There are a few remaining explicit rwsem and spinlock calls, and those are the places where the lock downgrade happens or where the temporary unlock/relocking happens -- which guard() doens't cover well yet. Only the code refactoring, and no functional changes. Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/20240227085306.9764-9-tiwai@suse.de
2024-02-28ALSA: mixer_oss: Use guard() for lockingTakashi Iwai
We can simplify the code gracefully with new guard() macro and co for automatic cleanup of locks. Only the code refactoring, and no functional changes. Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/20240227085306.9764-8-tiwai@suse.de
2024-02-28ALSA: info: Use guard() for lockingTakashi Iwai
We can simplify the code gracefully with new guard() macro and co for automatic cleanup of locks. Only the code refactoring, and no functional changes. Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/20240227085306.9764-7-tiwai@suse.de
2024-02-28ALSA: hwdep: Use guard() for lockingTakashi Iwai
We can simplify the code gracefully with new guard() macro and co for automatic cleanup of locks. There are still a few remaining explicit mutex_lock/unlock calls, and those are for the places where we do temporary unlock/relock, which doesn't fit well with the guard(), so far. Only the code refactoring, and no functional changes. Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/20240227085306.9764-6-tiwai@suse.de
2024-02-28ALSA: hrtimer: Use guard() for lockingTakashi Iwai
We can simplify the code gracefully with new guard() macro and co for automatic cleanup of locks. Only the code refactoring, and no functional changes. Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/20240227085306.9764-5-tiwai@suse.de
2024-02-28ALSA: timer: Use guard() for lockingTakashi Iwai
We can simplify the code gracefully with new guard() macro and co for automatic cleanup of locks. For making changes easier, some functions widen the application of register_mutex, but those shouldn't influence on any actual performance. Also, one code block was factored out as a function so that guard() can be applied cleanly without much indentation. There are still a few remaining explicit spin_lock/unlock calls, and those are for the places where we do temporary unlock/relock, which doesn't fit well with the guard(), so far. Only the code refactoring, and no functional changes. Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/20240227085306.9764-4-tiwai@suse.de
2024-02-28ALSA: compress_offload: Use guard() for lockingTakashi Iwai
We can simplify the code gracefully with new guard() macro and co for automatic cleanup of locks. The explicit mutex_lock/unlock are still seen only in snd_compress_wait_for_drain() which does temporary unlock/relocking. Only the code refactoring, and no functional changes. Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/20240227085306.9764-3-tiwai@suse.de
2024-02-28ALSA: ump: Use guard() for lockingTakashi Iwai
We can simplify the code gracefully with new guard() macro and co for automatic cleanup of locks. Only the code refactoring, and no functional changes. Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/20240227085306.9764-2-tiwai@suse.de
2024-02-28ALSA: kunit: Fix sparse warningsTakashi Iwai
There were a few sparse warnings about the cast of strong-typed snd_pcm_format_t. Fix them with cast with __force. For spreading the ugly mess, put them in the definitions WRONG_FORMAT_1 and WRONG_FORMAT_2 and use them in the callers. Fixes: 3e39acf56ede ("ALSA: core: Add sound core KUnit test") Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/r/202402270303.PmvmQrJV-lkp@intel.com Link: https://lore.kernel.org/r/20240227104912.18921-1-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
2024-02-23ALSA: pcm_oss: ump: Use automatic cleanup of kfree()Takashi Iwai
There are common patterns where a temporary buffer is allocated and freed at the exit, and those can be simplified with the recent cleanup mechanism via __free(kfree). No functional changes, only code refactoring. Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/20240223084241.3361-5-tiwai@suse.de
2024-02-23ALSA: mixer_oss: ump: Use automatic cleanup of kfree()Takashi Iwai
There are common patterns where a temporary buffer is allocated and freed at the exit, and those can be simplified with the recent cleanup mechanism via __free(kfree). No functional changes, only code refactoring. Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/20240223084241.3361-4-tiwai@suse.de
2024-02-23ALSA: pcm: Use CLASS() for fdget()/fdput()Takashi Iwai
Now we have a nice definition of CLASS(fd) that can be applied as a clean up for the fdget/fdput pairs in snd_pcm_link(). No functional changes, only code refactoring. Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/20240223084241.3361-2-tiwai@suse.de
2024-02-23ALSA: seq: core: Use automatic cleanup of kfree()Takashi Iwai
There are common patterns where a temporary buffer is allocated and freed at the exit, and those can be simplified with the recent cleanup mechanism via __free(kfree). No functional changes, only code refactoring. Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/20240222111509.28390-10-tiwai@suse.de
2024-02-23ALSA: seq: ump: Use automatic cleanup of kfree()Takashi Iwai
There are common patterns where a temporary buffer is allocated and freed at the exit, and those can be simplified with the recent cleanup mechanism via __free(kfree). No functional changes, only code refactoring. Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/20240222111509.28390-9-tiwai@suse.de
2024-02-23ALSA: seq: virmidi: Use automatic cleanup of kfree()Takashi Iwai
There are common patterns where a temporary buffer is allocated and freed at the exit, and those can be simplified with the recent cleanup mechanism via __free(kfree). No functional changes, only code refactoring. Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/20240222111509.28390-8-tiwai@suse.de
2024-02-23ALSA: seq: oss: Use automatic cleanup of kfree()Takashi Iwai
There are common patterns where a temporary buffer is allocated and freed at the exit, and those can be simplified with the recent cleanup mechanism via __free(kfree). No functional changes, only code refactoring. Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/20240222111509.28390-7-tiwai@suse.de
2024-02-23ALSA: vmaster: Use automatic cleanup of kfree()Takashi Iwai
There are common patterns where a temporary buffer is allocated and freed at the exit, and those can be simplified with the recent cleanup mechanism via __free(kfree). No functional changes, only code refactoring. Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/20240222111509.28390-6-tiwai@suse.de
2024-02-23ALSA: timer: Use automatic cleanup of kfree()Takashi Iwai
There are common patterns where a temporary buffer is allocated and freed at the exit, and those can be simplified with the recent cleanup mechanism via __free(kfree). No functional changes, only code refactoring. Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/20240222111509.28390-5-tiwai@suse.de
2024-02-23ALSA: compress_offload: Use automatic cleanup of kfree()Takashi Iwai
There are common patterns where a temporary buffer is allocated and freed at the exit, and those can be simplified with the recent cleanup mechanism via __free(kfree). A caveat is that some allocations are memdup_user() and they return an error pointer instead of NULL. Those need special cares and the value has to be cleared with no_free_ptr() at the allocation error path. Other than that, the conversions are straightforward. No functional changes, only code refactoring. Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/20240222111509.28390-4-tiwai@suse.de
2024-02-23ALSA: control: Use automatic cleanup of kfree()Takashi Iwai
There are common patterns where a temporary buffer is allocated and freed at the exit, and those can be simplified with the recent cleanup mechanism via __free(kfree). A caveat is that some allocations are memdup_user() and they return an error pointer instead of NULL. Those need special cares and the value has to be cleared with no_free_ptr() at the allocation error path. Other than that, the conversions are straightforward. No functional changes, only code refactoring. Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/20240222111509.28390-3-tiwai@suse.de
2024-02-23ALSA: pcm: Use automatic cleanup of kfree()Takashi Iwai
There are common patterns where a temporary buffer is allocated and freed at the exit, and those can be simplified with the recent cleanup mechanism via __free(kfree). A caveat is that some allocations are memdup_user() and they return an error pointer instead of NULL. Those need special cares and the value has to be cleared with no_free_ptr() at the allocation error path. Other than that, the conversions are straightforward. No functional changes, only code refactoring. Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/20240222111509.28390-2-tiwai@suse.de
2024-02-23ALSA: pcm: clarify and fix default msbits value for all formatsJaroslav Kysela
Return used most significant bits from sample bit-width rather than the whole physical sample word size. The starting bit offset is defined in the format itself. The behaviour is not changed for 32-bit formats like S32_LE. But with this change - msbits value 24 instead 32 is returned for 24-bit formats like S24_LE etc. Also, commit 2112aa034907 ("ALSA: pcm: Introduce MSBITS subformat interface") compares sample bit-width not physical sample bit-width to reset MSBITS_MAX bit from the subformat bitmask. Probably no applications are using msbits value for other than S32_LE/U32_LE formats, because no drivers are reducing msbits value for other formats (with the msb offset) at the moment. For sanity, increase PCM protocol version, letting the user space to detect the changed behaviour. Signed-off-by: Jaroslav Kysela <perex@perex.cz> Link: https://lore.kernel.org/r/20240222173649.1447549-1-perex@perex.cz Signed-off-by: Takashi Iwai <tiwai@suse.de>
2024-02-22ALSA: seq: prioq: Unify cell removal functionsTakashi Iwai
Both snd_seq_prioq_remove_events() and snd_seq_prioq_leave() have a very similar loop for removing events. Unify them with a callback for code simplification. Only the code refactoring, and no functional changes. Link: https://lore.kernel.org/r/20240222132152.29063-1-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
2024-02-21Merge branch 'for-linus' into for-nextTakashi Iwai
Pull 6.8-rc devel branch. The trivial merge conflict got resolved. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2024-02-21ALSA: Drop leftover snd-rtctimer stuff from MakefileTakashi Iwai
We forgot to remove the line for snd-rtctimer from Makefile while dropping the functionality. Get rid of the stale line. Fixes: 34ce71a96dcb ("ALSA: timer: remove legacy rtctimer") Link: https://lore.kernel.org/r/20240221092156.28695-1-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
2024-02-20ALSA: ump: Fix the discard error code from snd_ump_legacy_open()Takashi Iwai
snd_ump_legacy_open() didn't return the error code properly even if it couldn't open. Fix it. Fixes: 0b5288f5fe63 ("ALSA: ump: Add legacy raw MIDI support") Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20240220150843.28630-1-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
2024-02-19ALSA: core: fix buffer overflow in test_format_fill_silence()Arnd Bergmann
KASAN caught a buffer overflow with the hardcoded 2048 byte buffer size, when 2080 bytes are written to it: BUG: KASAN: slab-out-of-bounds in snd_pcm_format_set_silence+0x3bc/0x3e4 Write of size 8 at addr ffff0000c8149800 by task kunit_try_catch/1297 CPU: 0 PID: 1297 Comm: kunit_try_catch Tainted: G N 6.8.0-rc4-next-20240216 #1 Hardware name: linux,dummy-virt (DT) Call trace: kasan_report+0x78/0xc0 __asan_report_store_n_noabort+0x1c/0x28 snd_pcm_format_set_silence+0x3bc/0x3e4 _test_fill_silence+0xdc/0x298 test_format_fill_silence+0x110/0x228 kunit_try_run_case+0x144/0x3bc kunit_generic_run_threadfn_adapter+0x50/0x94 kthread+0x330/0x3e8 ret_from_fork+0x10/0x20 Allocated by task 1297: __kmalloc+0x17c/0x2f0 kunit_kmalloc_array+0x2c/0x78 test_format_fill_silence+0xcc/0x228 kunit_try_run_case+0x144/0x3bc kunit_generic_run_threadfn_adapter+0x50/0x94 kthread+0x330/0x3e8 ret_from_fork+0x10/0x20 Replace the incorrect size with the correct length of 260 64-bit samples. Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org> Suggested-by: Ivan Orlov <ivan.orlov0322@gmail.com> Fixes: 3e39acf56ede ("ALSA: core: Add sound core KUnit test") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Tested-by: Linux Kernel Functional Testing <lkft@linaro.org> Acked-by: Ivan Orlov <ivan.orlov0322@gmail.com> Link: https://lore.kernel.org/r/20240217104311.3749655-1-arnd@kernel.org Signed-off-by: Takashi Iwai <tiwai@suse.de>
2024-02-16ALSA: avoid 'bool' as variable nameArnd Bergmann
In modern C versions, 'bool' is a keyword that cannot be used as a variable name, so change this instance use something else, and change the type to bool instead. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20240216130211.3828455-1-arnd@kernel.org Signed-off-by: Takashi Iwai <tiwai@suse.de>
2024-02-15ALSA: seq: remove redundant 'tristate' for SND_SEQ_UMP_CLIENTMasahiro Yamada
'def_tristate' is a shorthand for 'default' + 'tristate'. Another 'tristate' is redundant. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Link: https://lore.kernel.org/r/20240215135304.1909431-1-masahiroy@kernel.org Signed-off-by: Takashi Iwai <tiwai@suse.de>