scsi: sd: define variable dif as unsigned int instead of bool

Variable dif in function sd_setup_read_write_cmnd() is the return value of
function scsi_host_dif_capable() which returns dif capability of disks.  If
define it as bool, even for the disks which support DIF3, the function
still return dif=1, which causes IO error. So define variable dif as
unsigned int instead of bool.

Fixes: e249e42d277e ("scsi: sd: Clean up sd_setup_read_write_cmnd()")
Link: https://lore.kernel.org/r/1571725628-132736-1-git-send-email-chenxiang66@hisilicon.com
Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 0f96eb0..fe05475 100644 (file)
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -1166,11 +1166,12 @@ static blk_status_t sd_setup_read_write_cmnd(struct scsi_cmnd *cmd)
        sector_t lba = sectors_to_logical(sdp, blk_rq_pos(rq));
        sector_t threshold;
        unsigned int nr_blocks = sectors_to_logical(sdp, blk_rq_sectors(rq));
-       bool dif, dix;
        unsigned int mask = logical_to_sectors(sdp, 1) - 1;
        bool write = rq_data_dir(rq) == WRITE;
        unsigned char protect, fua;
        blk_status_t ret;
+       unsigned int dif;
+       bool dix;
 
        ret = scsi_init_io(cmd);
        if (ret != BLK_STS_OK)