1 files changed, 30 insertions, 24 deletions

diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 255da53..1dd4d84 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -1196,19 +1196,10 @@ static int sd_done(struct scsi_cmnd *SCpnt)
 		SCpnt->result = 0;
 		memset(SCpnt->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
 		break;
-	case ABORTED_COMMAND:
-		if (sshdr.asc == 0x10) { /* DIF: Disk detected corruption */
-			scsi_print_result(SCpnt);
-			scsi_print_sense("sd", SCpnt);
+	case ABORTED_COMMAND: /* DIF: Target detected corruption */
+	case ILLEGAL_REQUEST: /* DIX: Host detected corruption */
+		if (sshdr.asc == 0x10)
 			good_bytes = sd_completed_bytes(SCpnt);
-		}
-		break;
-	case ILLEGAL_REQUEST:
-		if (sshdr.asc == 0x10) { /* DIX: HBA detected corruption */
-			scsi_print_result(SCpnt);
-			scsi_print_sense("sd", SCpnt);
-			good_bytes = sd_completed_bytes(SCpnt);
-		}
 		break;
 	default:
 		break;
@@ -1218,8 +1209,19 @@ static int sd_done(struct scsi_cmnd *SCpnt)
 		sd_dif_complete(SCpnt, good_bytes);
 
 	if (scsi_host_dif_capable(sdkp->device->host, sdkp->protection_type)
-	    == SD_DIF_TYPE2_PROTECTION && SCpnt->cmnd != SCpnt->request->cmd)
+	    == SD_DIF_TYPE2_PROTECTION && SCpnt->cmnd != SCpnt->request->cmd) {
+
+		/* We have to print a failed command here as the
+		 * extended CDB gets freed before scsi_io_completion()
+		 * is called.
+		 */
+		if (result)
+			scsi_print_command(SCpnt);
+
 		mempool_free(SCpnt->cmnd, sd_cdb_pool);
+		SCpnt->cmnd = NULL;
+		SCpnt->cmd_len = 0;
+	}
 
 	return good_bytes;
 }
@@ -1946,13 +1948,13 @@ static void sd_read_block_limits(struct scsi_disk *sdkp)
 {
 	struct request_queue *q = sdkp->disk->queue;
 	unsigned int sector_sz = sdkp->device->sector_size;
-	char *buffer;
+	const int vpd_len = 32;
+	unsigned char *buffer = kmalloc(vpd_len, GFP_KERNEL);
 
-	/* Block Limits VPD */
-	buffer = scsi_get_vpd_page(sdkp->device, 0xb0);
-
-	if (buffer == NULL)
-		return;
+	if (!buffer ||
+	    /* Block Limits VPD */
+	    scsi_get_vpd_page(sdkp->device, 0xb0, buffer, vpd_len))
+		goto out;
 
 	blk_queue_io_min(sdkp->disk->queue,
 			 get_unaligned_be16(&buffer[6]) * sector_sz);
@@ -1984,6 +1986,7 @@ static void sd_read_block_limits(struct scsi_disk *sdkp)
 				get_unaligned_be32(&buffer[32]) & ~(1 << 31);
 	}
 
+ out:
 	kfree(buffer);
 }
 
@@ -1993,20 +1996,23 @@ static void sd_read_block_limits(struct scsi_disk *sdkp)
  */
 static void sd_read_block_characteristics(struct scsi_disk *sdkp)
 {
-	char *buffer;
+	unsigned char *buffer;
 	u16 rot;
+	const int vpd_len = 32;
 
-	/* Block Device Characteristics VPD */
-	buffer = scsi_get_vpd_page(sdkp->device, 0xb1);
+	buffer = kmalloc(vpd_len, GFP_KERNEL);
 
-	if (buffer == NULL)
-		return;
+	if (!buffer ||
+	    /* Block Device Characteristics VPD */
+	    scsi_get_vpd_page(sdkp->device, 0xb1, buffer, vpd_len))
+		goto out;
 
 	rot = get_unaligned_be16(&buffer[4]);
 
 	if (rot == 1)
 		queue_flag_set_unlocked(QUEUE_FLAG_NONROT, sdkp->disk->queue);
 
+ out:
 	kfree(buffer);
 }