[S390] cio: Use strict_strtoul() for attributes.

[linux-2.6-omap-h63xx.git] / drivers / s390 / cio / cmf.c

diff --git a/drivers/s390/cio/cmf.c b/drivers/s390/cio/cmf.c
index f4c132ab39edef112c72faad0c492dd3971d0ed7..2808b6833b9edea7fceb7263017316e61dedbbd3 100644 (file)
--- a/drivers/s390/cio/cmf.c
+++ b/drivers/s390/cio/cmf.c
@@ -1219,16 +1219,21 @@ static ssize_t cmb_enable_store(struct device *dev,
 {
        struct ccw_device *cdev;
        int ret;
+       unsigned long val;
+
+       ret = strict_strtoul(buf, 16, &val);
+       if (ret)
+               return ret;
 
        cdev = to_ccwdev(dev);
 
-       switch (buf[0]) {
-       case '0':
+       switch (val) {
+       case 0:
                ret = disable_cmf(cdev);
                if (ret)
                        dev_info(&cdev->dev, "disable_cmf failed (%d)\n", ret);
                break;
-       case '1':
+       case 1:
                ret = enable_cmf(cdev);
                if (ret && ret != -EBUSY)
                        dev_info(&cdev->dev, "enable_cmf failed (%d)\n", ret);