diff options
| author | weiping zhang <zhangweiping@didichuxing.com> | 2017-10-12 14:57:06 +0800 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2017-10-17 01:26:25 -0400 |
| commit | 623401ee33e42cee64d333877892be8db02951eb (patch) | |
| tree | 43ed62638bb6fd718ab410287bd70254080222fd /drivers/scsi/sd.c | |
| parent | 658e9a6dc1126f21fa417cd213e1cdbff8be0ba2 (diff) | |
| download | linux-623401ee33e42cee64d333877892be8db02951eb.tar.bz2 | |
scsi: sd: change manage_start_stop to bool in sysfs interface
/sys/class/scsi_disk/0:2:0:0/manage_start_stop can be changed to 0
unexpectly by writing an invalid string.
Signed-off-by: weiping zhang <zhangweiping@didichuxing.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/sd.c')
| -rw-r--r-- | drivers/scsi/sd.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index ce9cc7afd095..37daf9a42afe 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -231,11 +231,15 @@ manage_start_stop_store(struct device *dev, struct device_attribute *attr, { struct scsi_disk *sdkp = to_scsi_disk(dev); struct scsi_device *sdp = sdkp->device; + bool v; if (!capable(CAP_SYS_ADMIN)) return -EACCES; - sdp->manage_start_stop = simple_strtoul(buf, NULL, 10); + if (kstrtobool(buf, &v)) + return -EINVAL; + + sdp->manage_start_stop = v; return count; } |