On 11/10/2017 02:08 AM, James Smart wrote:
During driver unload, the driver may crash due to NULL pointers. The NULL pointers were due to the driver not protecting itself sufficiently during some of the teardown paths. Additionally, the driver was not waiting for and cleanup up nvme io resources. As such, the driver wasn't making the callbacks to the transport, stalling the transports association teardown.
This patch waits for io clean up before tearding down and adds checks for possible NULL pointers.
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
drivers/scsi/lpfc/lpfc_crtn.h | 2 + drivers/scsi/lpfc/lpfc_init.c | 18 ++++++++ drivers/scsi/lpfc/lpfc_nvme.c | 96 ++++++++++++++++++++++++++++++++++++++----- 3 files changed, 105 insertions(+), 11 deletions(-)
Reviewed-by: Hannes Reinecke hare@suse.com
Cheers,
Hannes