From: Dave Airlie <airlied@xxxxxxxxxx>
a step towards correct hot unplug for USB devices, we need to
remove the userspace facing bits at the unplug time for correct
udev operation.
Signed-off-by: Dave Airlie <airlied@xxxxxxxxxx>
---
drivers/gpu/drm/drm_sysfs.c | 7 ++++++-
1 files changed, 6 insertions(+), 1 deletions(-)
diff --git a/drivers/gpu/drm/drm_sysfs.c b/drivers/gpu/drm/drm_sysfs.c
index 62c3675..5a7bd51 100644
--- a/drivers/gpu/drm/drm_sysfs.c
+++ b/drivers/gpu/drm/drm_sysfs.c
@@ -454,6 +454,8 @@ void drm_sysfs_connector_remove(struct drm_connector *connector)
{
int i;
+ if (!connector->kdev.parent)
+ return;
DRM_DEBUG("removing \"%s\" from sysfs\n",
drm_get_connector_name(connector));
@@ -461,6 +463,7 @@ void drm_sysfs_connector_remove(struct drm_connector *connector)
device_remove_file(&connector->kdev, &connector_attrs[i]);
sysfs_remove_bin_file(&connector->kdev.kobj, &edid_attr);
device_unregister(&connector->kdev);
+ connector->kdev.parent = NULL;
}
EXPORT_SYMBOL(drm_sysfs_connector_remove);
@@ -533,7 +536,9 @@ err_out:
*/
void drm_sysfs_device_remove(struct drm_minor *minor)
{
- device_unregister(&minor->kdev);
+ if (minor->kdev.parent)
+ device_unregister(&minor->kdev);
+ minor->kdev.parent = NULL;
}
--
1.7.6
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