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dm ioctl: have constant on the right side of the test 

[ Upstream commit 5cae0aa773 ]

Signed-off-by: Heinz Mauelshagen <heinzm@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Stable-dep-of: 249bed821b ("dm ioctl: Avoid double-fetch of version")
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Heinz Mauelshagen 2023-02-07 21:47:45 +01:00 committed by Greg Kroah-Hartman
parent fd4497aca3
commit 2798779419
1 changed files with 2 additions and 2 deletions
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4
drivers/md/dm-ioctl.c
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@ -1819,8 +1819,8 @@ static int check_version(unsigned int cmd, struct dm_ioctl __user *user)
if (copy_from_user(version, user->version, sizeof(version)))
return -EFAULT;
if ((DM_VERSION_MAJOR != version[0]) ||
(DM_VERSION_MINOR < version[1])) {
if ((version[0] != DM_VERSION_MAJOR) ||
(version[1] > DM_VERSION_MINOR)) {
DMERR("ioctl interface mismatch: kernel(%u.%u.%u), user(%u.%u.%u), cmd(%d)",
DM_VERSION_MAJOR, DM_VERSION_MINOR,
DM_VERSION_PATCHLEVEL,