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xtensa: 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>
Cc: Chris Zankel <chris@zankel.net>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Matt Fleming 2012-03-21 16:33:44 -07:00 committed by Linus Torvalds
parent 7904ac8424
commit fa47ac5902
1 changed files with 1 additions and 3 deletions
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4
arch/xtensa/kernel/signal.c
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@ -425,9 +425,7 @@ static void setup_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);
}
/*