ide-atapi: use local sense buffer

Access the sense buffer through the bio in ->pc_callback method thus alleviating the need for the pc->buf pointer. There should be no functional change resulting from this patch. Signed-off-by: Borislav Petkov <[email protected]>
mna · May 15, 2009 · ae3a838 · ae3a838
1 parent 5122e51
commit ae3a838
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Showing 3 changed files with 8 additions and 4 deletions.
diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c
@@ -253,7 +253,9 @@ void ide_retry_pc(ide_drive_t *drive)
 	/* init pc from sense_rq */
 	ide_init_pc(pc);
 	memcpy(pc->c, sense_rq->cmd, 12);
-	pc->buf = bio_data(sense_rq->bio);	/* pointer to mapped address */
+
+	/* pointer to mapped address */
+	pc->buf = bio_data(sense_rq->bio);
 	pc->req_xfer = blk_rq_bytes(sense_rq);
 
 	if (drive->media == ide_tape)

diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c
@@ -77,7 +77,8 @@ static int ide_floppy_callback(ide_drive_t *drive, int dsc)
 	    (rq && blk_pc_request(rq)))
 		uptodate = 1; /* FIXME */
 	else if (pc->c[0] == GPCMD_REQUEST_SENSE) {
-		u8 *buf = pc->buf;
+
+		u8 *buf = bio_data(rq->bio);
 
 		if (!pc->error) {
 			floppy->sense_key = buf[2] & 0x0F;

diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
@@ -288,11 +288,12 @@ static struct ide_tape_obj *ide_tape_chrdev_get(unsigned int i)
  * called on each failed packet command retry to analyze the request sense. We
  * currently do not utilize this information.
  */
-static void idetape_analyze_error(ide_drive_t *drive, u8 *sense)
+static void idetape_analyze_error(ide_drive_t *drive)
 {
 	idetape_tape_t *tape = drive->driver_data;
 	struct ide_atapi_pc *pc = drive->failed_pc;
 	struct request *rq = drive->hwif->rq;
+	u8 *sense = bio_data(rq->bio);
 
 	tape->sense_key = sense[2] & 0xF;
 	tape->asc       = sense[12];
@@ -362,7 +363,7 @@ static int ide_tape_callback(ide_drive_t *drive, int dsc)
 
 	if (pc->c[0] == REQUEST_SENSE) {
 		if (uptodate)
-			idetape_analyze_error(drive, pc->buf);
+			idetape_analyze_error(drive);
 		else
 			printk(KERN_ERR "ide-tape: Error in REQUEST SENSE "
 					"itself - Aborting request!\n");