From: Matt Fleming <matt.fleming@intel.com>
Date: Fri, 11 May 2012 00:58:03 +0000 (+1000)
Subject: microblaze: don't reimplement force_sigsegv()
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=de8f2ddd69fc817b66138b36d656a2973d6afd8a;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git

microblaze: don't reimplement force_sigsegv()

Instead of open coding the sequence from force_sigsegv() just call it.
This also fixes a bug because we were modifying ka->sa.sa_handler (which
is a copy of sighand->action[]), whereas the intention of the code was to
modify sighand->action[] directly.

As the original code was working with a copy it had no effect on signal
delivery.

Acked-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Michal Simek <monstr@monstr.eu>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---

diff --git a/arch/microblaze/kernel/signal.c b/arch/microblaze/kernel/signal.c
index 59967116898..90de06da3f6 100644
--- a/arch/microblaze/kernel/signal.c
+++ b/arch/microblaze/kernel/signal.c
@@ -270,9 +270,7 @@ static void setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 	return;
 
 give_sigsegv:
-	if (sig == SIGSEGV)
-		ka->sa.sa_handler = SIG_DFL;
-	force_sig(SIGSEGV, current);
+	force_sigsegv(sig, current);
 }
 
 /* Handle restarting system calls */