[PATCH] arm: irqs_disabled() type fix

kernel/sched.c: In function `__might_sleep':
kernel/sched.c:5461: warning: int format, long unsigned int arg (arg 3)

We expect irqs_disabled() to return an int (poor man's bool).
Acked-by: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

include/asm-arm/system.h

@@ -308,7 +308,7 @@ do {									\
 ({					\
 	unsigned long flags;		\
 	local_save_flags(flags);	\
-	flags & PSR_I_BIT;		\
+	(int)(flags & PSR_I_BIT);	\
 })
 
 #ifdef CONFIG_SMP