scsi: lpfc: fix pci hot plug crash in list_add call

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During pci hot plug, the kernel crashes in a list_add_call

The lookup by tag function will return null if the IOCB is out of range
or does not have the on txcmplq flag set.

Fix: Check for null return from lookup by tag.

Cc: <stable@vger.kernel.org> # 4.12+
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

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Dick Kennedy 2017-09-29 17:34:28 -07:00 • committed by Martin K. Petersen

parent 1901762f2c

commit 401bb4169d

1 changed files with 10 additions and 7 deletions

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drivers/scsi/lpfc/lpfc_sli.c

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