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Diffstat (limited to 'drivers/uio/uio.c')
-rw-r--r--drivers/uio/uio.c17
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);
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