x86: use sizeof(long) to unify signal_32|64.c
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/arch/x86/kernel/signal_32.c b/arch/x86/kernel/signal_32.c
index 9eb23fb..47c85e6 100644
--- a/arch/x86/kernel/signal_32.c
+++ b/arch/x86/kernel/signal_32.c
@@ -214,11 +214,12 @@
asmlinkage int sys_rt_sigreturn(unsigned long __unused)
{
- struct pt_regs *regs = (struct pt_regs *) &__unused;
- struct rt_sigframe __user *frame = (struct rt_sigframe __user *)(regs->sp - 4);
+ struct pt_regs *regs = (struct pt_regs *)&__unused;
+ struct rt_sigframe __user *frame;
sigset_t set;
int ax;
+ frame = (struct rt_sigframe __user *)(regs->sp - sizeof(long));
if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
goto badframe;
if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
diff --git a/arch/x86/kernel/signal_64.c b/arch/x86/kernel/signal_64.c
index b7d7a6d..1045a07 100644
--- a/arch/x86/kernel/signal_64.c
+++ b/arch/x86/kernel/signal_64.c
@@ -133,13 +133,11 @@
sigset_t set;
unsigned long ax;
- frame = (struct rt_sigframe __user *)(regs->sp - 8);
- if (!access_ok(VERIFY_READ, frame, sizeof(*frame))) {
+ frame = (struct rt_sigframe __user *)(regs->sp - sizeof(long));
+ if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
goto badframe;
- }
- if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set))) {
+ if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
goto badframe;
- }
sigdelsetmask(&set, ~_BLOCKABLE);
spin_lock_irq(¤t->sighand->siglock);