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Commit defc2a9b authored by Stefan Haberland's avatar Stefan Haberland Committed by Martin Schwidefsky
Browse files

s390/dasd: allow 0 for path_threshold attribute 



Allow 0 as valid input for the path_threshold attribute to deactivate
the IFCC/CCC error handling.

Signed-off-by: default avatarStefan Haberland <sth@linux.vnet.ibm.com>
Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent 34525e1f

drivers/s390/block/dasd_devmap.c

+2 −4
Original line number Diff line number Diff line
@@ -1518,13 +1518,11 @@ dasd_path_threshold_store(struct device *dev, struct device_attribute *attr, 
	if (IS_ERR(device))

		return -ENODEV;



	if ((kstrtoul(buf, 10, &val) != 0) ||

	    (val > DASD_THRHLD_MAX) || val == 0) {

	if (kstrtoul(buf, 10, &val) != 0 || val > DASD_THRHLD_MAX) {

		dasd_put_device(device);

		return -EINVAL;

	}

	spin_lock_irqsave(get_ccwdev_lock(to_ccwdev(dev)), flags);

	if (val)

	device->path_thrhld = val;

	spin_unlock_irqrestore(get_ccwdev_lock(to_ccwdev(dev)), flags);

	dasd_put_device(device);