diff options
| author | Al Viro <viro@zeniv.linux.org.uk> | 2017-09-04 12:28:06 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2017-09-19 17:56:05 -0400 |
| commit | 68c38fb6acb12f007785c53a7367fc9de8e34745 (patch) | |
| tree | 4e7ba106dbe15f52afbb68f2957333f7621b493d | |
| parent | c60a03fee0e5d5c124befe041696228c8c665eaa (diff) | |
sparc: switch to {get,put}_compat_sigset()
slightly more complicated than usual, since old sigframe layout
on sparc keeps the first 32 bits of mask away from the rest
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| -rw-r--r-- | arch/sparc/kernel/signal32.c | 9 |
1 files changed, 2 insertions, 7 deletions
diff --git a/arch/sparc/kernel/signal32.c b/arch/sparc/kernel/signal32.c index 0e4c08c45a37..36ad8301fb4c 100644 --- a/arch/sparc/kernel/signal32.c +++ b/arch/sparc/kernel/signal32.c @@ -248,7 +248,6 @@ asmlinkage void do_rt_sigreturn32(struct pt_regs *regs) compat_uptr_t fpu_save; compat_uptr_t rwin_save; sigset_t set; - compat_sigset_t seta; int err, i; /* Always make any pending restarted system calls return -EINTR */ @@ -311,7 +310,7 @@ asmlinkage void do_rt_sigreturn32(struct pt_regs *regs) err |= __get_user(fpu_save, &sf->fpu_save); if (!err && fpu_save) err |= restore_fpu_state(regs, compat_ptr(fpu_save)); - err |= copy_from_user(&seta, &sf->mask, sizeof(compat_sigset_t)); + err |= get_compat_sigset(&set, &sf->mask); err |= compat_restore_altstack(&sf->stack); if (err) goto segv; @@ -322,7 +321,6 @@ asmlinkage void do_rt_sigreturn32(struct pt_regs *regs) goto segv; } - set.sig[0] = seta.sig[0] + (((long)seta.sig[1]) << 32); set_current_blocked(&set); return; segv: @@ -554,7 +552,6 @@ static int setup_rt_frame32(struct ksignal *ksig, struct pt_regs *regs, void __user *tail; int sigframe_size; u32 psr; - compat_sigset_t seta; /* 1. Make sure everything is clean */ synchronize_user_stack(); @@ -624,9 +621,7 @@ static int setup_rt_frame32(struct ksignal *ksig, struct pt_regs *regs, /* Setup sigaltstack */ err |= __compat_save_altstack(&sf->stack, regs->u_regs[UREG_FP]); - seta.sig[1] = (oldset->sig[0] >> 32); - seta.sig[0] = oldset->sig[0]; - err |= __copy_to_user(&sf->mask, &seta, sizeof(compat_sigset_t)); + err |= put_compat_sigset(&sf->mask, oldset, sizeof(compat_sigset_t)); if (!wsaved) { err |= copy_in_user((u32 __user *)sf, |