diff options
| author | Tyrel Datwyler <tyreld@linux.vnet.ibm.com> | 2019-03-20 13:41:50 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-03-27 14:14:40 +0900 |
| commit | 04809b226e794c8ad305d11865d66a92a9c82933 (patch) | |
| tree | 50d9f1f4ea47417015ab04f4f70878784299a868 /kernel | |
| parent | b8ea151a7ab5448782006b3723e6b25c33cbae64 (diff) | |
scsi: ibmvscsi: Protect ibmvscsi_head from concurrent modificaiton
commit 7205981e045e752ccf96cf6ddd703a98c59d4339 upstream.
For each ibmvscsi host created during a probe or destroyed during a remove
we either add or remove that host to/from the global ibmvscsi_head
list. This runs the risk of concurrent modification.
This patch adds a simple spinlock around the list modification calls to
prevent concurrent updates as is done similarly in the ibmvfc driver and
ipr driver.
Fixes: 32d6e4b6e4ea ("scsi: ibmvscsi: add vscsi hosts to global list_head")
Cc: <stable@vger.kernel.org> # v4.10+
Signed-off-by: Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel')
0 files changed, 0 insertions, 0 deletions