From: Qinglang Miao miaoqinglang@huawei.com
[ Upstream commit 4d7659bfbe277a43399a4a2d90fca141e70f29e1 ]
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 Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/md/dm-ioctl.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c index ac83f5002ce5f..1c5133f71af39 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; }