Commit 98b1ad38 authored Nov 28, 2020 by Qinglang Miao Committed by Greg Kroah-Hartman Dec 29, 2020

dm ioctl: fix error return code in target_message



[ 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: 2ca4c92f ("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>

parent 9c30396c

drivers/md/dm-ioctl.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -1549,6 +1549,7 @@ static int target_message(struct dm_ioctl *param, size_t param_size)

		if (!argc) {
		DMWARN("Empty message received.");
		r = -EINVAL;
		goto out_argv;
		}