---

yaml --- r: 242489 b: refs/heads/master c: 9a26513 h: refs/heads/master i: 242487: 6e053b7 v: v3
git-mirror · Mar 23, 2011 · 4ad42e4 · 4ad42e4
1 parent 22bc0a1
commit 4ad42e4
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Showing 2 changed files with 3 additions and 2 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 4cc69531f91dfa1668af5e9d8efe9e3bc7b64548
+refs/heads/master: 9a26513eb67ec4b2cb1744834076afad21b68aac
diff --git a/trunk/drivers/s390/cio/qdio_main.c b/trunk/drivers/s390/cio/qdio_main.c
@@ -1508,7 +1508,8 @@ int do_QDIO(struct ccw_device *cdev, unsigned int callflags,
 
 	if (irq_ptr->state != QDIO_IRQ_STATE_ACTIVE)
 		return -EBUSY;
-
+	if (!count)
+		return 0;
 	if (callflags & QDIO_FLAG_SYNC_INPUT)
 		return handle_inbound(irq_ptr->input_qs[q_nr],
 				      callflags, bufnr, count);