aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
-rw-r--r--block/blk-map.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/block/blk-map.c b/block/blk-map.c
index 4849fa36161..0f4b4b88181 100644
--- a/block/blk-map.c
+++ b/block/blk-map.c
@@ -217,6 +217,12 @@ int blk_rq_map_user_iov(struct request_queue *q, struct request *rq,
217 return PTR_ERR(bio); 217 return PTR_ERR(bio);
218 218
219 if (bio->bi_size != len) { 219 if (bio->bi_size != len) {
220 /*
221 * Grab an extra reference to this bio, as bio_unmap_user()
222 * expects to be able to drop it twice as it happens on the
223 * normal IO completion path
224 */
225 bio_get(bio);
220 bio_endio(bio, 0); 226 bio_endio(bio, 0);
221 bio_unmap_user(bio); 227 bio_unmap_user(bio);
222 return -EINVAL; 228 return -EINVAL;