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 5996711..90de06d 100644 (file)
--- 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 */