[PATCH] fix INIT_SIGHAND warning on mips

sa_handler isn't the first member of struct sigaction on mips.  Use C99
initializers to avoid a compiler warning.  (There don't seem to be more
serious problems as mips worked with that warning for ages)
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

include/linux/init_task.h

@@ -56,7 +56,7 @@
 
 #define INIT_SIGHAND(sighand) {						\
 	.count		= ATOMIC_INIT(1), 				\
-	.action		= { {{NULL,}}, },		\
+	.action		= { { { .sa_handler = NULL, } }, },		\
 	.siglock	= SPIN_LOCK_UNLOCKED, 				\
 }