X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?p=kvmfornfv.git;a=blobdiff_plain;f=kernel%2Fblock%2Fblk-map.c;h=69953bd97e6597f684803b5064662a13abb8c65b;hp=f565e11f465aa145120973bce58ef7ecc192f349;hb=52f993b8e89487ec9ee15a7fb4979e0f09a45b27;hpb=c189ccac5702322ed843fe17057035b7222a59b6

diff --git a/kernel/block/blk-map.c b/kernel/block/blk-map.c
index f565e11f4..69953bd97 100644
--- a/kernel/block/blk-map.c
+++ b/kernel/block/blk-map.c
@@ -90,6 +90,9 @@ int blk_rq_map_user_iov(struct request_queue *q, struct request *rq,
 	if (!iter || !iter->count)
 		return -EINVAL;
 
+	if (!iter_is_iovec(iter))
+		return -EINVAL;
+
 	iov_for_each(iov, i, *iter) {
 		unsigned long uaddr = (unsigned long) iov.iov_base;