IRIX: Use schedule_timeout_interruptible.
    
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/kernel/irixsig.c b/arch/mips/kernel/irixsig.c
index 908e636..dd118c6 100644
--- a/arch/mips/kernel/irixsig.c
+++ b/arch/mips/kernel/irixsig.c
@@ -502,8 +502,7 @@
 	while(1) {
 		long tmp = 0;
 
-		current->state = TASK_INTERRUPTIBLE;
-		expire = schedule_timeout(expire);
+		expire = schedule_timeout_interruptible(expire);
 
 		for (i=0; i<=4; i++)
 			tmp |= (current->pending.signal.sig[i] & kset.sig[i]);