[S390] s390mach compile warning

Fix the following compile warning:

drivers/s390/s390mach.c: In function 's390_collect_crw_info':
drivers/s390/s390mach.c:77: warning: ignoring return value of 'down_interruptibl

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/s390/s390mach.c b/drivers/s390/s390mach.c
index 4d4b54277c43..5080f343ad74 100644
--- a/drivers/s390/s390mach.c
+++ b/drivers/s390/s390mach.c
@@ -48,10 +48,11 @@ s390_collect_crw_info(void *param)
         int ccode;
         struct semaphore *sem;
         unsigned int chain;
+        int ignore;
 
         sem = (struct semaphore *)param;
 repeat:
-        down_interruptible(sem);
+        ignore = down_interruptible(sem);
         chain = 0;
         while (1) {
                 if (unlikely(chain > 1)) {