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| author | weiping zhang <zhangweiping@didichuxing.com> | 2017-10-12 14:57:06 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-12-20 10:05:01 +0100 |
| commit | c387c02d604d8ff4d422968e5348bb245e443b9e (patch) | |
| tree | 8783e2f2bb739ae5bfe00b0708f30c2f0029b91d | |
| parent | 2e03af22f65c67c1b0dcb0f98eee9061fe3bc0da (diff) | |
| download | linux-stable-c387c02d604d8ff4d422968e5348bb245e443b9e.tar.gz linux-stable-c387c02d604d8ff4d422968e5348bb245e443b9e.tar.bz2 linux-stable-c387c02d604d8ff4d422968e5348bb245e443b9e.zip | |
scsi: sd: change manage_start_stop to bool in sysfs interface
[ Upstream commit 623401ee33e42cee64d333877892be8db02951eb ]
/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>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -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 7e1681cf287c..19bfa7646c2b 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -233,11 +233,15 @@ 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; } |