Btrfs: fix NULL pointer crash of deleting a seed device
authorLiu Bo <bo.li.liu@oracle.com>
Sun, 11 May 2014 15:14:59 +0000 (23:14 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 1 Jul 2014 03:12:01 +0000 (20:12 -0700)
commitba9ea146601ca8d387d451089b18d12321330f4f
tree0371b40221ff563493a5025288b52489072a2c18
parenta9142eca7be86f00db4c504d16adba29fdbbe287
Btrfs: fix NULL pointer crash of deleting a seed device

commit 29cc83f69c8338ff8fd1383c9be263d4bdf52d73 upstream.

Same as normal devices, seed devices should be initialized with
fs_info->dev_root as well, otherwise we'll get a NULL pointer crash.

Cc: Chris Murphy <lists@colorremedies.com>
Reported-by: Chris Murphy <lists@colorremedies.com>
Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Chris Mason <clm@fb.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
fs/btrfs/volumes.c