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author | James Bottomley | 2013-11-15 23:58:00 +0100 |
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committer | James Bottomley | 2013-12-02 20:13:14 +0100 |
commit | a1470c7bf3a4676e62e4c0fb204e339399eb5c59 (patch) | |
tree | 5678d07f70cadae7509067b2118a956400d41ff8 /lib/notifier-error-inject.h | |
parent | [SCSI] pm80xx: Tasklets synchronization fix. (diff) | |
download | kernel-qcow2-linux-a1470c7bf3a4676e62e4c0fb204e339399eb5c59.tar.gz kernel-qcow2-linux-a1470c7bf3a4676e62e4c0fb204e339399eb5c59.tar.xz kernel-qcow2-linux-a1470c7bf3a4676e62e4c0fb204e339399eb5c59.zip |
[SCSI] enclosure: fix WARN_ON in dual path device removing
Bug report from: wenxiong@linux.vnet.ibm.com
The issue is happened in dual controller configuration. We got the
sysfs warnings when rmmod the ipr module.
enclosure_unregister() in drivers/msic/enclosure.c, call device_unregister()
for each componment deivce, device_unregister() ->device_del()->kobject_del()
->sysfs_remove_dir(). In sysfs_remove_dir(), set kobj->sd = NULL.
For each componment device,
enclosure_component_release()->enclosure_remove_links()->sysfs_remove_link()
in which checking kobj->sd again, it has been set as NULL when doing
device_unregister. So we saw all these sysfs WARNING.
Tested-by: wenxiong@linux.vnet.ibm.com
Cc: stable@vger.kernel.org
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'lib/notifier-error-inject.h')
0 files changed, 0 insertions, 0 deletions