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authorDavid S. Miller <davem@davemloft.net>2016-12-10 16:21:55 -0500
committerDavid S. Miller <davem@davemloft.net>2016-12-10 16:21:55 -0500
commit821781a9f40673c2aa0f29d9d8226ec320dff20c (patch)
treec9d5cb8a184fff84a9d841d8cb5da4b26be5c551 /block/blk-map.c
parent3174fed9820edc95cff74ad0934c3240c7fb5115 (diff)
parent045169816b31b10faed984b01c390db1b32ee4c1 (diff)
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Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'block/blk-map.c')
-rw-r--r--block/blk-map.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/block/blk-map.c b/block/blk-map.c
index b8657fa8dc9a..27fd8d92892d 100644
--- a/block/blk-map.c
+++ b/block/blk-map.c
@@ -118,6 +118,9 @@ int blk_rq_map_user_iov(struct request_queue *q, struct request *rq,
struct iov_iter i;
int ret;
+ if (!iter_is_iovec(iter))
+ goto fail;
+
if (map_data)
copy = true;
else if (iov_iter_alignment(iter) & align)
@@ -140,6 +143,7 @@ int blk_rq_map_user_iov(struct request_queue *q, struct request *rq,
unmap_rq:
__blk_rq_unmap_user(bio);
+fail:
rq->bio = NULL;
return -EINVAL;
}