Like sd_pr_command, before use sshdr, we need to check the result
of scsi_execute.
Signed-off-by: zhengbin <zhengbin13@xxxxxxxxxx>
---
drivers/scsi/device_handler/scsi_dh_rdac.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/scsi/device_handler/scsi_dh_rdac.c b/drivers/scsi/device_handler/scsi_dh_rdac.c
index 5efc959..2a43985 100644
--- a/drivers/scsi/device_handler/scsi_dh_rdac.c
+++ b/drivers/scsi/device_handler/scsi_dh_rdac.c
@@ -531,6 +531,7 @@ static void send_mode_select(struct work_struct *work)
struct scsi_device *sdev = ctlr->ms_sdev;
struct rdac_dh_data *h = sdev->handler_data;
int err = SCSI_DH_OK, retry_cnt = RDAC_RETRY_COUNT;
+ int result;
struct rdac_queue_data *tmp, *qdata;
LIST_HEAD(list);
unsigned char cdb[MAX_COMMAND_SIZE];
@@ -555,9 +556,10 @@ static void send_mode_select(struct work_struct *work)
(char *) h->ctlr->array_name, h->ctlr->index,
(retry_cnt == RDAC_RETRY_COUNT) ? "queueing" : "retrying");
- if (scsi_execute(sdev, cdb, DMA_TO_DEVICE, &h->ctlr->mode_select,
- data_size, NULL, &sshdr, RDAC_TIMEOUT * HZ,
- RDAC_RETRIES, req_flags, 0, NULL)) {
+ result = scsi_execute(sdev, cdb, DMA_TO_DEVICE, &h->ctlr->mode_select,
+ data_size, NULL, &sshdr, RDAC_TIMEOUT * HZ,
+ RDAC_RETRIES, req_flags, 0, NULL);
+ if (driver_byte(result) == DRIVER_SENSE) {
err = mode_select_handle_sense(sdev, &sshdr);
if (err == SCSI_DH_RETRY && retry_cnt--)
goto retry;
--
2.7.4
