diff options
Diffstat (limited to 'drivers/uio/uio.c')
| -rw-r--r-- | drivers/uio/uio.c | 17 |
1 files changed, 3 insertions, 14 deletions
diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c index bc774cc..8132288 100644 --- a/drivers/uio/uio.c +++ b/drivers/uio/uio.c @@ -229,10 +229,7 @@ static ssize_t show_name(struct device *dev, struct device_attribute *attr, char *buf) { struct uio_device *idev = dev_get_drvdata(dev); - if (idev) - return sprintf(buf, "%s\n", idev->info->name); - else - return -ENODEV; + return sprintf(buf, "%s\n", idev->info->name); } static DEVICE_ATTR(name, S_IRUGO, show_name, NULL); @@ -240,10 +237,7 @@ static ssize_t show_version(struct device *dev, struct device_attribute *attr, char *buf) { struct uio_device *idev = dev_get_drvdata(dev); - if (idev) - return sprintf(buf, "%s\n", idev->info->version); - else - return -ENODEV; + return sprintf(buf, "%s\n", idev->info->version); } static DEVICE_ATTR(version, S_IRUGO, show_version, NULL); @@ -251,11 +245,7 @@ static ssize_t show_event(struct device *dev, struct device_attribute *attr, char *buf) { struct uio_device *idev = dev_get_drvdata(dev); - if (idev) - return sprintf(buf, "%u\n", - (unsigned int)atomic_read(&idev->event)); - else - return -ENODEV; + return sprintf(buf, "%u\n", (unsigned int)atomic_read(&idev->event)); } static DEVICE_ATTR(event, S_IRUGO, show_event, NULL); @@ -878,7 +868,6 @@ void uio_unregister_device(struct uio_info *info) uio_dev_del_attributes(idev); - dev_set_drvdata(idev->dev, NULL); device_destroy(uio_class, MKDEV(uio_major, idev->minor)); kfree(idev); |
