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| author | Al Viro | 2012-12-14 20:47:53 +0100 |
|---|---|---|
| committer | Al Viro | 2012-12-20 00:07:41 +0100 |
| commit | 9026843952adac5b123c7b8dc961e5c15828d9e1 (patch) | |
| tree | 4ef89cf05cf97427ceb2587fed94a6a12833d527 /arch/x86/kernel/signal.c | |
| parent | introduce generic sys_sigaltstack(), switch x86 and um to it (diff) | |
| download | kernel-qcow2-linux-9026843952adac5b123c7b8dc961e5c15828d9e1.tar.gz kernel-qcow2-linux-9026843952adac5b123c7b8dc961e5c15828d9e1.tar.xz kernel-qcow2-linux-9026843952adac5b123c7b8dc961e5c15828d9e1.zip | |
generic compat_sys_sigaltstack()
Again, conditional on CONFIG_GENERIC_SIGALTSTACK
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'arch/x86/kernel/signal.c')
| -rw-r--r-- | arch/x86/kernel/signal.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/arch/x86/kernel/signal.c b/arch/x86/kernel/signal.c index 16d065c23baf..b17ed37c61a2 100644 --- a/arch/x86/kernel/signal.c +++ b/arch/x86/kernel/signal.c @@ -857,7 +857,6 @@ asmlinkage long sys32_x32_rt_sigreturn(struct pt_regs *regs) struct rt_sigframe_x32 __user *frame; sigset_t set; unsigned long ax; - struct pt_regs tregs; frame = (struct rt_sigframe_x32 __user *)(regs->sp - 8); @@ -871,8 +870,7 @@ asmlinkage long sys32_x32_rt_sigreturn(struct pt_regs *regs) if (restore_sigcontext(regs, &frame->uc.uc_mcontext, &ax)) goto badframe; - tregs = *regs; - if (sys32_sigaltstack(&frame->uc.uc_stack, NULL, &tregs) == -EFAULT) + if (compat_restore_altstack(&frame->uc.uc_stack)) goto badframe; return ax; |