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authorThomas Gleixner <tglx@linutronix.de>2019-07-28 15:12:52 +0200
committerThomas Gleixner <tglx@linutronix.de>2019-07-31 00:09:09 +0200
commita9446a906f52292c52ecbd5be78eaa4d8395756c (patch)
tree4790fb898f84c8ab47afcc3172e6a523fb0f8d29 /lib/vdso/Kconfig
parent629f8205a6cc63d2e8e30956bad958a3507d018f (diff)
lib/vdso/32: Remove inconsistent NULL pointer checks
The 32bit variants of vdso_clock_gettime()/getres() have a NULL pointer check for the timespec pointer. That's inconsistent vs. 64bit. But the vdso implementation will never be consistent versus the syscall because the only case which it can handle is NULL. Any other invalid pointer will cause a segfault. So special casing NULL is not really useful. Remove it along with the superflouos syscall fallback invocation as that will return -EFAULT anyway. That also gets rid of the dubious typecast which only works because the pointer is NULL. Fixes: 00b26474c2f1 ("lib/vdso: Provide generic VDSO implementation") Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Vincenzo Frascino <vincenzo.frascino@arm.com> Reviewed-by: Vincenzo Frascino <vincenzo.frascino@arm.com> Reviewed-by: Andy Lutomirski <luto@kernel.org> Link: https://lkml.kernel.org/r/20190728131648.587523358@linutronix.de
Diffstat (limited to 'lib/vdso/Kconfig')
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