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authorQinglang Miao <miaoqinglang@huawei.com>2020-11-28 18:19:59 +0800
committerMike Snitzer <snitzer@redhat.com>2020-12-04 18:04:36 -0500
commit4d7659bfbe277a43399a4a2d90fca141e70f29e1 (patch)
tree529cda4c4adf118839dd39e619960e9321fc2987 /drivers/md
parente8dc79d1bdda0c048bfc7d39a8146c6db1c36ef6 (diff)
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>
Diffstat (limited to 'drivers/md')
-rw-r--r--drivers/md/dm-ioctl.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c
index cd0478d44058..5e306bba4375 100644
--- a/drivers/md/dm-ioctl.c
+++ b/drivers/md/dm-ioctl.c
@@ -1600,6 +1600,7 @@ static int target_message(struct file *filp, struct dm_ioctl *param, size_t para
if (!argc) {
DMWARN("Empty message received.");
+ r = -EINVAL;
goto out_argv;
}