[SCSI] replace sizeof sense_buffer with SCSI_SENSE_BUFFERSIZE

This replaces sizeof sense_buffer with SCSI_SENSE_BUFFERSIZE in
several LLDs. It's a preparation for the future changes to remove
sense_buffer array in scsi_cmnd structure.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
diff --git a/drivers/scsi/aic7xxx/aic79xx_osm.c b/drivers/scsi/aic7xxx/aic79xx_osm.c
index 2d02040..0e4708f 100644
--- a/drivers/scsi/aic7xxx/aic79xx_osm.c
+++ b/drivers/scsi/aic7xxx/aic79xx_osm.c
@@ -1784,7 +1784,7 @@
 			if (scb->flags & SCB_SENSE) {
 				sense_size = min(sizeof(struct scsi_sense_data)
 					       - ahd_get_sense_residual(scb),
-						 (u_long)sizeof(cmd->sense_buffer));
+						 (u_long)SCSI_SENSE_BUFFERSIZE);
 				sense_offset = 0;
 			} else {
 				/*
@@ -1795,11 +1795,11 @@
 				    scb->sense_data;
 				sense_size = min_t(size_t,
 						scsi_4btoul(siu->sense_length),
-						sizeof(cmd->sense_buffer));
+						SCSI_SENSE_BUFFERSIZE);
 				sense_offset = SIU_SENSE_OFFSET(siu);
 			}
 
-			memset(cmd->sense_buffer, 0, sizeof(cmd->sense_buffer));
+			memset(cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
 			memcpy(cmd->sense_buffer,
 			       ahd_get_sense_buf(ahd, scb)
 			       + sense_offset, sense_size);
diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.c b/drivers/scsi/aic7xxx/aic7xxx_osm.c
index 390b0fc..e310e41 100644
--- a/drivers/scsi/aic7xxx/aic7xxx_osm.c
+++ b/drivers/scsi/aic7xxx/aic7xxx_osm.c
@@ -1801,12 +1801,12 @@
 
 			sense_size = min(sizeof(struct scsi_sense_data)
 				       - ahc_get_sense_residual(scb),
-					 (u_long)sizeof(cmd->sense_buffer));
+					 (u_long)SCSI_SENSE_BUFFERSIZE);
 			memcpy(cmd->sense_buffer,
 			       ahc_get_sense_buf(ahc, scb), sense_size);
-			if (sense_size < sizeof(cmd->sense_buffer))
+			if (sense_size < SCSI_SENSE_BUFFERSIZE)
 				memset(&cmd->sense_buffer[sense_size], 0,
-				       sizeof(cmd->sense_buffer) - sense_size);
+				       SCSI_SENSE_BUFFERSIZE - sense_size);
 			cmd->result |= (DRIVER_SENSE << 24);
 #ifdef AHC_DEBUG
 			if (ahc_debug & AHC_SHOW_SENSE) {