[PATCH] block: fix parameter not described warning

[davidcomponentone]

From: Yang Guang <yang.guang5@xxxxxxxxxx>

The build warning:
block/blk-core.c:968: warning: Function parameter or member 'iob'
not described in 'bio_poll'.

Reported-by: Zeal Robot <zealci@xxxxxxxxxx>
Signed-off-by: Yang Guang <yang.guang5@xxxxxxxxxx>
---
 block/blk-core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/block/blk-core.c b/block/blk-core.c
index 6ae8297b033f..2053d1b0e90e 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -956,6 +956,7 @@ EXPORT_SYMBOL(submit_bio);
 /**
  * bio_poll - poll for BIO completions
  * @bio: bio to poll for
+ * @iob: batches of IO
  * @flags: BLK_POLL_* flags that control the behavior
  *
  * Poll for completions on queue associated with the bio. Returns number of
-- 
2.30.2