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scsi: core: Improve sdev_store_timeout()

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Check whether or not the conversion of the argument to an integer
succeeded. Reject invalid timeout values.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Link: https://patch.msgid.link/20251031221844.2921694-1-bvanassche@acm.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Bart Van Assche
2025-10-31 15:18:44 -07:00
committed by Martin K. Petersen
parent 61deab8a32
commit 867e4b1bae
1 changed files with 8 additions and 4 deletions
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12
drivers/scsi/scsi_sysfs.c
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@@ -648,10 +648,14 @@ static ssize_t
sdev_store_timeout (struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct scsi_device *sdev;
int timeout;
sdev = to_scsi_device(dev);
sscanf (buf, "%d\n", &timeout);
struct scsi_device *sdev = to_scsi_device(dev);
int ret, timeout;
ret = kstrtoint(buf, 0, &timeout);
if (ret)
return ret;
if (timeout <= 0)
return -EINVAL;
blk_queue_rq_timeout(sdev->request_queue, timeout * HZ);
return count;
}