From: Damien Le Moal <damien.lemoal@wdc.com>
Date: Thu, 31 May 2018 17:42:40 +0900
Subject: [PATCH] scsi: sd_zbc: Fix sd_zbc_check_zone_size() error path
Git-commit: 3aadbe2523cab462da24c62d9cac5e018a6e69d5
Patch-mainline: v4.18-rc1
References: bsc#1118139
If a drive with variable zone sizes or an invalid last zone size is
detected, the local variable this_zone_blocks is set to 0 and early return
from the function triggered, but this does not result in an error return.
The local variable zone_blocks must be set to 0 for an error to be
returned.
[mkp: typo in commit description]
Fixes: ccce20fc7968 ("scsi: sd_zbc: Avoid that resetting a zone fails sporadically")
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Cc: Bart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: Bart Van Assche <bart.vanassche@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Hannes Reinecke <hare@suse.com>
---
drivers/scsi/sd_zbc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/scsi/sd_zbc.c b/drivers/scsi/sd_zbc.c
index 210407cd2341..ff1ba996d87b 100644
--- a/drivers/scsi/sd_zbc.c
+++ b/drivers/scsi/sd_zbc.c
@@ -452,7 +452,7 @@ static s64 sd_zbc_check_zone_size(struct scsi_disk *sdkp)
} else if (this_zone_blocks != zone_blocks &&
(block + this_zone_blocks < sdkp->capacity
|| this_zone_blocks > zone_blocks)) {
- this_zone_blocks = 0;
+ zone_blocks = 0;
goto out;
}
block += this_zone_blocks;
--
2.16.4