scsi: lpfc: Fix kernel Oops due to null pring pointers

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Driver is hitting null pring pointers in lpfc_do_work().

Pointer assignment occurs based on SLI-revision. If recovering after an
error, its possible the sli revision for the port was cleared, making the
lpfc_phba_elsring() not return a ring pointer, thus the null pointer.

Add SLI revision checking to lpfc_phba_elsring() and status checking to all
callers.

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

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James Smart 2018-11-29 16:09:32 -08:00 • committed by Martin K. Petersen

parent 2c4c91415a

commit 5a9eeff57f

4 changed files with 16 additions and 1 deletions

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6

drivers/scsi/lpfc/lpfc.h

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2

drivers/scsi/lpfc/lpfc_els.c

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7

drivers/scsi/lpfc/lpfc_init.c

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2

drivers/scsi/lpfc/lpfc_sli.c

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