mac80211: use unaligned safe memcmp() in-place of compare_ether_addr()

[karo-tx-linux.git] / block / blk-map.c

diff --git a/block/blk-map.c b/block/blk-map.c
index 4849fa36161eb697b47b08efa27af085b58bed3c..0f4b4b88181178b0344127df63af79f7d95da915 100644 (file)
--- 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,
                return PTR_ERR(bio);
 
        if (bio->bi_size != len) {
+               /*
+                * Grab an extra reference to this bio, as bio_unmap_user()
+                * expects to be able to drop it twice as it happens on the
+                * normal IO completion path
+                */
+               bio_get(bio);
                bio_endio(bio, 0);
                bio_unmap_user(bio);
                return -EINVAL;