when there's an error in 'ncq mode' the host has to read the ncq error log (10h) to clear the error state. however, the ccb that is setup for doing this doesn't setup the ccb so that the previous state is cleared. if the ccb was previously used for an IO n_elems is set and pm8001_ccb_task_free() treats this as the signal to go free a scatter-gather list (that's already been free-ed). Signed-off-by: Deepak Ukey <deepak.ukey@xxxxxxxxxxxxx> Signed-off-by: Viswas G <Viswas.G@xxxxxxxxxxxxx> --- drivers/scsi/pm8001/pm80xx_hwi.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/scsi/pm8001/pm80xx_hwi.c b/drivers/scsi/pm8001/pm80xx_hwi.c index 92d2045dea68..f2c0839afbe3 100644 --- a/drivers/scsi/pm8001/pm80xx_hwi.c +++ b/drivers/scsi/pm8001/pm80xx_hwi.c @@ -1489,6 +1489,7 @@ static void pm80xx_send_read_log(struct pm8001_hba_info *pm8001_ha, ccb->device = pm8001_ha_dev; ccb->ccb_tag = ccb_tag; ccb->task = task; + ccb->n_elem = 0; pm8001_ha_dev->id |= NCQ_READ_LOG_FLAG; pm8001_ha_dev->id |= NCQ_2ND_RLE_FLAG; -- 2.12.3
