camera: fix s5k6aa sensor driver compile error

[firefly-linux-kernel-4.4.55.git] / block / blk-map.c

diff --git a/block/blk-map.c b/block/blk-map.c
index 9083cf0180cc8a296d2529a4ef9d9943ea5d05c1..30a7e51589305d9504b6689c5f2587d5234ce03f 100644 (file)
--- a/block/blk-map.c
+++ b/block/blk-map.c
@@ -205,6 +205,8 @@ int blk_rq_map_user_iov(struct request_queue *q, struct request *rq,
                        unaligned = 1;
                        break;
                }
+               if (!iov[i].iov_len)
+                       return -EINVAL;
        }
 
        if (unaligned || (q->dma_pad_mask & len) || map_data)