diff --git a/fs/ceph/ioctl.c b/fs/ceph/ioctl.c
index d7dc812a22494157d4870a594323309ffba59bfd..f851d8d70158ea0aaf3dd87945cc7f256570d58d 100644
--- a/fs/ceph/ioctl.c
+++ b/fs/ceph/ioctl.c
@@ -41,7 +41,7 @@ static long __validate_layout(struct ceph_mds_client *mdsc,
 	/* validate striping parameters */
 	if ((l->object_size & ~PAGE_MASK) ||
 	    (l->stripe_unit & ~PAGE_MASK) ||
-	    (l->stripe_unit != 0 &&
+	    ((unsigned)l->stripe_unit != 0 &&
 	     ((unsigned)l->object_size % (unsigned)l->stripe_unit)))
 		return -EINVAL;