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path: root/drivers/gpu/drm/drm_sysfs.c
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Diffstat (limited to 'drivers/gpu/drm/drm_sysfs.c')
-rw-r--r--drivers/gpu/drm/drm_sysfs.c40
1 files changed, 33 insertions, 7 deletions
diff --git a/drivers/gpu/drm/drm_sysfs.c b/drivers/gpu/drm/drm_sysfs.c
index 1a35ea53106b..bd2bca395792 100644
--- a/drivers/gpu/drm/drm_sysfs.c
+++ b/drivers/gpu/drm/drm_sysfs.c
@@ -489,6 +489,11 @@ void drm_sysfs_hotplug_event(struct drm_device *dev)
}
EXPORT_SYMBOL(drm_sysfs_hotplug_event);
+static void drm_sysfs_release(struct device *dev)
+{
+ kfree(dev);
+}
+
/**
* drm_sysfs_device_add - adds a class device to sysfs for a character driver
* @dev: DRM device to be added
@@ -501,6 +506,7 @@ EXPORT_SYMBOL(drm_sysfs_hotplug_event);
int drm_sysfs_device_add(struct drm_minor *minor)
{
char *minor_str;
+ int r;
if (minor->type == DRM_MINOR_CONTROL)
minor_str = "controlD%d";
@@ -509,14 +515,34 @@ int drm_sysfs_device_add(struct drm_minor *minor)
else
minor_str = "card%d";
- minor->kdev = device_create(drm_class, minor->dev->dev,
- MKDEV(DRM_MAJOR, minor->index),
- minor, minor_str, minor->index);
- if (IS_ERR(minor->kdev)) {
- DRM_ERROR("device create failed %ld\n", PTR_ERR(minor->kdev));
- return PTR_ERR(minor->kdev);
+ minor->kdev = kzalloc(sizeof(*minor->kdev), GFP_KERNEL);
+ if (!minor->dev) {
+ r = -ENOMEM;
+ goto error;
}
+
+ device_initialize(minor->kdev);
+ minor->kdev->devt = MKDEV(DRM_MAJOR, minor->index);
+ minor->kdev->class = drm_class;
+ minor->kdev->type = &drm_sysfs_device_minor;
+ minor->kdev->parent = minor->dev->dev;
+ minor->kdev->release = drm_sysfs_release;
+ dev_set_drvdata(minor->kdev, minor);
+
+ r = dev_set_name(minor->kdev, minor_str, minor->index);
+ if (r < 0)
+ goto error;
+
+ r = device_add(minor->kdev);
+ if (r < 0)
+ goto error;
+
return 0;
+
+error:
+ DRM_ERROR("device create failed %d\n", r);
+ put_device(minor->kdev);
+ return r;
}
/**
@@ -529,7 +555,7 @@ int drm_sysfs_device_add(struct drm_minor *minor)
void drm_sysfs_device_remove(struct drm_minor *minor)
{
if (minor->kdev)
- device_destroy(drm_class, MKDEV(DRM_MAJOR, minor->index));
+ device_unregister(minor->kdev);
minor->kdev = NULL;
}