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authorWill Deacon <will.deacon@arm.com>2012-11-23 12:01:03 +0100
committerCatalin Marinas <catalin.marinas@arm.com>2012-11-23 19:11:37 +0100
commit060a18c7e3d52bdb2ff70dcc09f23dcf1656e6c8 (patch)
tree5bc9cabf72831369cd8cb5fa003d9ea80defd79e /arch/arm64/kernel/signal32.c
parentarm64: signal: push the unwinding prologue on the signal stack (diff)
downloadlinux-060a18c7e3d52bdb2ff70dcc09f23dcf1656e6c8.tar.xz
linux-060a18c7e3d52bdb2ff70dcc09f23dcf1656e6c8.zip
arm64: signal: align return types for compat and native setup_return
setup_return is a void function, so make compat_setup_return look the same rather then unconditionally return 0. Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64/kernel/signal32.c')
-rw-r--r--arch/arm64/kernel/signal32.c14
1 files changed, 5 insertions, 9 deletions
diff --git a/arch/arm64/kernel/signal32.c b/arch/arm64/kernel/signal32.c
index 4654824747a4..8f96fc9656db 100644
--- a/arch/arm64/kernel/signal32.c
+++ b/arch/arm64/kernel/signal32.c
@@ -605,9 +605,9 @@ static inline void __user *compat_get_sigframe(struct k_sigaction *ka,
return frame;
}
-static int compat_setup_return(struct pt_regs *regs, struct k_sigaction *ka,
- compat_ulong_t __user *rc, void __user *frame,
- int usig)
+static void compat_setup_return(struct pt_regs *regs, struct k_sigaction *ka,
+ compat_ulong_t __user *rc, void __user *frame,
+ int usig)
{
compat_ulong_t handler = ptr_to_compat(ka->sa.sa_handler);
compat_ulong_t retcode;
@@ -643,8 +643,6 @@ static int compat_setup_return(struct pt_regs *regs, struct k_sigaction *ka,
regs->compat_lr = retcode;
regs->pc = handler;
regs->pstate = spsr;
-
- return 0;
}
static int compat_setup_sigframe(struct compat_sigframe __user *sf,
@@ -714,11 +712,9 @@ int compat_setup_rt_frame(int usig, struct k_sigaction *ka, siginfo_t *info,
err |= __copy_to_user(&frame->sig.uc.uc_stack, &stack, sizeof(stack));
err |= compat_setup_sigframe(&frame->sig, regs, set);
- if (err == 0)
- err = compat_setup_return(regs, ka, frame->sig.retcode, frame,
- usig);
if (err == 0) {
+ compat_setup_return(regs, ka, frame->sig.retcode, frame, usig);
regs->regs[1] = (compat_ulong_t)(unsigned long)&frame->info;
regs->regs[2] = (compat_ulong_t)(unsigned long)&frame->sig.uc;
}
@@ -741,7 +737,7 @@ int compat_setup_frame(int usig, struct k_sigaction *ka, sigset_t *set,
err |= compat_setup_sigframe(frame, regs, set);
if (err == 0)
- err = compat_setup_return(regs, ka, frame->retcode, frame, usig);
+ compat_setup_return(regs, ka, frame->retcode, frame, usig);
return err;
}