| commit | 647a20d5cad7477033bc021ec9dd75edf4bbf9a0 | [log] [tgz] |
|---|---|---|
| author | Mike Snitzer <snitzer@redhat.com> | Tue Nov 17 14:11:34 2015 -0500 |
| committer | Mike Snitzer <snitzer@redhat.com> | Tue Nov 17 14:18:49 2015 -0500 |
| tree | 459ab91e5d61c98a2607f5414af593d46705eaa0 | |
| parent | 5bbbfdf685657771fda05b926b28ca0f79163a28 [diff] |
dm: do not reuse dm_blk_ioctl block_device input as local variable
(Ab)using the @bdev passed to dm_blk_ioctl() opens the potential for
targets' .prepare_ioctl to fail if they go on to check the bdev for
!NULL.
Fixes: e56f81e0b01e ("dm: refactor ioctl handling")
Reported-by: Junichi Nomura <j-nomura@ce.jp.nec.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>