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Subject[PATCH] x86_32,signal: Fix vdso rt_sigreturn
Date
This commit:

commit 6f121e548f83674ab4920a4e60afb58d4f61b829
Author: Andy Lutomirski <luto@amacapital.net>
Date: Mon May 5 12:19:34 2014 -0700

x86, vdso: Reimplement vdso.so preparation in build-time C

Contained this obvious typo:

- restorer = VDSO32_SYMBOL(current->mm->context.vdso, rt_sigreturn);
+ restorer = current->mm->context.vdso +
+ selected_vdso32->sym___kernel_sigreturn;

Note the missing 'rt_' in the new code. Fix it.

Signed-off-by: Andy Lutomirski <luto@amacapital.net>
---

Compile-tested only. I bet that someone will test it here far more quickly
than I can figure out how to test it:

https://bugzilla.redhat.com/show_bug.cgi?id=1110968

arch/x86/kernel/signal.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/signal.c b/arch/x86/kernel/signal.c
index a0da58d..2851d63 100644
--- a/arch/x86/kernel/signal.c
+++ b/arch/x86/kernel/signal.c
@@ -363,7 +363,7 @@ static int __setup_rt_frame(int sig, struct ksignal *ksig,

/* Set up to return from userspace. */
restorer = current->mm->context.vdso +
- selected_vdso32->sym___kernel_sigreturn;
+ selected_vdso32->sym___kernel_rt_sigreturn;
if (ksig->ka.sa.sa_flags & SA_RESTORER)
restorer = ksig->ka.sa.sa_restorer;
put_user_ex(restorer, &frame->pretcode);
--
1.9.3


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