[PATCH v5 12/13] scsi: ufs: need to check whether sshdr is valid in ufshcd_set_dev_pwr_mode

[zhengbin]

Like sd_pr_command, before use sshdr, we need to check whether
sshdr is valid.

Signed-off-by: zhengbin <zhengbi...@huawei.com>
---
 drivers/scsi/ufs/ufshcd.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index c28c144..5afc426 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -7600,7 +7600,8 @@ static int ufshcd_set_dev_pwr_mode(struct ufs_hba *hba,
                sdev_printk(KERN_WARNING, sdp,
                            "START_STOP failed for power mode: %d, result %x\n",
                            pwr_mode, ret);
-               if (driver_byte(ret) == DRIVER_SENSE)
+               if (driver_byte(ret) == DRIVER_SENSE &&
+                   scsi_sense_valid(&sshdr))
                        scsi_print_sense_hdr(sdp, NULL, &sshdr);
        }

--
2.7.4