block/bsg-lib: use PTR_ERR_OR_ZERO to simplify the flow path

Simplify the code by using the PTR_ERR_OR_ZERO, instead of the open code. It is better. Reviewed-by: Johannes Thumshirn <[email protected]> Signed-off-by: zhong jiang <[email protected]> Signed-off-by: Jens Axboe <[email protected]>
josf · Aug 1, 2018 · 4725549 · 4725549
1 parent 08fcf81
commit 4725549
Showing 1 changed file with 2 additions and 3 deletions.
diff --git a/block/bsg-lib.c b/block/bsg-lib.c
@@ -48,9 +48,8 @@ static int bsg_transport_fill_hdr(struct request *rq, struct sg_io_v4 *hdr,
 
 	job->request_len = hdr->request_len;
 	job->request = memdup_user(uptr64(hdr->request), hdr->request_len);
-	if (IS_ERR(job->request))
-		return PTR_ERR(job->request);
-	return 0;
+
+	return PTR_ERR_OR_ZERO(job->request);
 }
 
 static int bsg_transport_complete_rq(struct request *rq, struct sg_io_v4 *hdr)