diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/s390/cio/ccwgroup.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/s390/cio/ccwgroup.c b/drivers/s390/cio/ccwgroup.c index 959135a01847..fd3367a1dc7a 100644 --- a/drivers/s390/cio/ccwgroup.c +++ b/drivers/s390/cio/ccwgroup.c @@ -128,14 +128,14 @@ static ssize_t ccwgroup_online_store(struct device *dev, const char *buf, size_t count) { struct ccwgroup_device *gdev = to_ccwgroupdev(dev); - struct ccwgroup_driver *gdrv = to_ccwgroupdrv(dev->driver); unsigned long value; int ret; - if (!dev->driver) - return -EINVAL; - if (!try_module_get(gdrv->driver.owner)) - return -EINVAL; + device_lock(dev); + if (!dev->driver) { + ret = -EINVAL; + goto out; + } ret = kstrtoul(buf, 0, &value); if (ret) @@ -148,7 +148,7 @@ static ssize_t ccwgroup_online_store(struct device *dev, else ret = -EINVAL; out: - module_put(gdrv->driver.owner); + device_unlock(dev); return (ret == 0) ? count : ret; } |