scsi: scsi_dh_alua: Check for negative result value

scsi_execute() will now return a negative error if there was an error prior
to command submission; evaluate that instead if checking for DRIVER_ERROR.

[mkp: build fix]

Link: https://lore.kernel.org/r/20210427083046.31620-6-hare@suse.de
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/device_handler/scsi_dh_alua.c b/drivers/scsi/device_handler/scsi_dh_alua.c
index 03b7f255644f43b7ec31a4bf0ed99393acd36dbb..7baee18ebd03476a4c04922efe09f52dd4c81e14 100644 (file)
--- a/drivers/scsi/device_handler/scsi_dh_alua.c
+++ b/drivers/scsi/device_handler/scsi_dh_alua.c
@@ -563,12 +563,12 @@ static int alua_rtpg(struct scsi_device *sdev, struct alua_port_group *pg)
                        kfree(buff);
                        return SCSI_DH_OK;
                }
-               if (!scsi_sense_valid(&sense_hdr)) {
+               if (retval < 0 || !scsi_sense_valid(&sense_hdr)) {
                        sdev_printk(KERN_INFO, sdev,
                                    "%s: rtpg failed, result %d\n",
                                    ALUA_DH_NAME, retval);
                        kfree(buff);
-                       if (driver_byte(retval) == DRIVER_ERROR)
+                       if (retval < 0)
                                return SCSI_DH_DEV_TEMP_BUSY;
                        if (host_byte(retval) == DID_NO_CONNECT)
                                return SCSI_DH_RES_TEMP_UNAVAIL;
@@ -794,11 +794,11 @@ static unsigned alua_stpg(struct scsi_device *sdev, struct alua_port_group *pg)
        retval = submit_stpg(sdev, pg->group_id, &sense_hdr);
 
        if (retval) {
-               if (!scsi_sense_valid(&sense_hdr)) {
+               if (retval < 0 || !scsi_sense_valid(&sense_hdr)) {
                        sdev_printk(KERN_INFO, sdev,
                                    "%s: stpg failed, result %d",
                                    ALUA_DH_NAME, retval);
-                       if (driver_byte(retval) == DRIVER_ERROR)
+                       if (retval < 0)
                                return SCSI_DH_DEV_TEMP_BUSY;
                } else {
                        sdev_printk(KERN_INFO, sdev, "%s: stpg failed\n",