diff mbox

[V2,08/12] scsi: sd_zbc: Fix sd_zbc_read_zoned_characteristics()

Message ID 20170907161640.30465-9-damien.lemoal@wdc.com (mailing list archive)
State New, archived
Headers show

Commit Message

Damien Le Moal Sept. 7, 2017, 4:16 p.m. UTC 
The three values starting at byte 8 of the Zoned Block Device
Characteristics VPD page B6h are 32 bits values, not 64bits. So use
get_unaligned_be32() to retrieve the values and not get_unaligned_be64()

Fixes: 89d947561077 ("sd: Implement support for ZBC devices")
Cc: <stable@vger.kernel.org>

Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Reviewed-by: Bart Van Assche <Bart.VanAssche@wdc.com>
---
 drivers/scsi/sd_zbc.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

Comments

Johannes Thumshirn Sept. 8, 2017, 8:17 a.m. UTC | #1 
Looks good,
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
diff mbox

Patch

diff --git a/drivers/scsi/sd_zbc.c b/drivers/scsi/sd_zbc.c
index 8a45db8bd6e7..8b258254a2bb 100644
--- a/drivers/scsi/sd_zbc.c
+++ b/drivers/scsi/sd_zbc.c
@@ -358,15 +358,15 @@  static int sd_zbc_read_zoned_characteristics(struct scsi_disk *sdkp,
 	if (sdkp->device->type != TYPE_ZBC) {
 		/* Host-aware */
 		sdkp->urswrz = 1;
-		sdkp->zones_optimal_open = get_unaligned_be64(&buf[8]);
-		sdkp->zones_optimal_nonseq = get_unaligned_be64(&buf[12]);
+		sdkp->zones_optimal_open = get_unaligned_be32(&buf[8]);
+		sdkp->zones_optimal_nonseq = get_unaligned_be32(&buf[12]);
 		sdkp->zones_max_open = 0;
 	} else {
 		/* Host-managed */
 		sdkp->urswrz = buf[4] & 1;
 		sdkp->zones_optimal_open = 0;
 		sdkp->zones_optimal_nonseq = 0;
-		sdkp->zones_max_open = get_unaligned_be64(&buf[16]);
+		sdkp->zones_max_open = get_unaligned_be32(&buf[16]);
 	}
 
 	return 0;