]> www.infradead.org Git - users/jedix/linux-maple.git/commit
ocfs2: fix freeing uninitialized resource on ocfs2_dlm_shutdown
authorHeming Zhao <ocfs2-devel@oss.oracle.com>
Mon, 15 Aug 2022 08:57:54 +0000 (16:57 +0800)
committerAndrew Morton <akpm@linux-foundation.org>
Mon, 22 Aug 2022 22:57:13 +0000 (15:57 -0700)
commita2356cdcdbca7bd2aad1087a84b49bf13a85bc3e
treea59bdc665715487c98301533e433e8668d288f3e
parentbfa38e58f427bc903cfc605fae302cd4da383ffb
ocfs2: fix freeing uninitialized resource on ocfs2_dlm_shutdown

After commit 0737e01de9c4 ("ocfs2: ocfs2_mount_volume does cleanup job
before return error"), any procedure after ocfs2_dlm_init() fails will
trigger crash when calling ocfs2_dlm_shutdown().

ie: On local mount mode, no dlm resource is initialized.  If
ocfs2_mount_volume() fails in ocfs2_find_slot(), error handling will call
ocfs2_dlm_shutdown(), then does dlm resource cleanup job, which will
trigger kernel crash.

This solution should bypass uninitialized resources in
ocfs2_dlm_shutdown().

Link: https://lkml.kernel.org/r/20220815085754.20417-1-heming.zhao@suse.com
Fixes: 0737e01de9c4 ("ocfs2: ocfs2_mount_volume does cleanup job before return error")
Signed-off-by: Heming Zhao <heming.zhao@suse.com>
Reviewed-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Changwei Ge <gechangwei@live.cn>
Cc: Gang He <ghe@suse.com>
Cc: Jun Piao <piaojun@huawei.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
fs/ocfs2/dlmglue.c
fs/ocfs2/super.c