scsi: sd_zbc: Fix sd_zbc_read_zoned_characteristics()

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>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/sd_zbc.c b/drivers/scsi/sd_zbc.c
index bbad851..27793b9 100644 (file)
--- a/drivers/scsi/sd_zbc.c
+++ b/drivers/scsi/sd_zbc.c
@@ -423,15 +423,15 @@ 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;