dm ioctl: fix error return code in target_message
authorQinglang Miao <miaoqinglang@huawei.com>
Sat, 28 Nov 2020 10:19:59 +0000 (18:19 +0800)
committerMike Snitzer <snitzer@redhat.com>
Fri, 4 Dec 2020 23:04:36 +0000 (18:04 -0500)
commit4d7659bfbe277a43399a4a2d90fca141e70f29e1
tree529cda4c4adf118839dd39e619960e9321fc2987
parente8dc79d1bdda0c048bfc7d39a8146c6db1c36ef6
dm ioctl: fix error return code in target_message

Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.

Fixes: 2ca4c92f58f9 ("dm ioctl: prevent empty message")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
drivers/md/dm-ioctl.c