[PATCH v2] scsi: ufs: use an generic error code in ufshcd_set_dev_pwr_mode

[Kiwoong Kim]

v1 -> v2: modify the comment of ufshcd_set_dev_pwr_mode

The return value of ufshcd_set_dev_pwr_mode is given to
device pm core. However, the function currently returns a result
in scsi command and the device pm core doesn't understand it.
It might lead to unexpected behaviors of user land. I found
the return value led to platform reset in Android.

This patch is to use an generic code for SSU failures.

Signed-off-by: Kiwoong Kim <kwmad.kim@xxxxxxxxxxx>
---
 drivers/scsi/ufs/ufshcd.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 1049e41..a60816c 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -8669,6 +8669,7 @@ static int ufshcd_set_dev_pwr_mode(struct ufs_hba *hba,
 			    pwr_mode, ret);
 		if (ret > 0 && scsi_sense_valid(&sshdr))
 			scsi_print_sense_hdr(sdp, NULL, &sshdr);
+		ret = -EIO;
 	}
 
 	if (!ret)
-- 
2.7.4