[PATCH] sys_signal: initialize ->sa_mask

[Oleg Nesterov <oleg@tv-sign.ru>]

Pointed out by Linus Torvalds.

sys_signal() forgets to initialize ->sa_mask.

( I suspect arch/ia64/ia32/ia32_signal.c:sys32_signal()
  also needs this fix )

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>

--- RC-1/kernel/signal.c~	2006-02-01 23:38:20.000000000 +0300
+++ RC-1/kernel/signal.c	2006-02-09 23:17:54.000000000 +0300
@@ -2702,6 +2702,7 @@ sys_signal(int sig, __sighandler_t handl
 
 	new_sa.sa.sa_handler = handler;
 	new_sa.sa.sa_flags = SA_ONESHOT | SA_NOMASK;
+	sigemptyset(&new_sa.sa.sa_mask);
 
 	ret = do_sigaction(sig, &new_sa, &old_sa);
-
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