drm: cleanup exit path for module unload
The current sub-module unload exit path is a mess, it tries
to abuse the idr. Just keep a list of devices per driver struct
and free them in-order on rmmod.
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index d5e8e5c..08b8539 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -737,6 +737,8 @@
int num_ioctls;
struct file_operations fops;
struct pci_driver pci_driver;
+ /* List of devices hanging off this driver */
+ struct list_head device_list;
};
#define DRM_MINOR_UNASSIGNED 0
@@ -759,6 +761,7 @@
* may contain multiple heads.
*/
struct drm_device {
+ struct list_head driver_item; /**< list of devices per driver */
char *unique; /**< Unique identifier: e.g., busid */
int unique_len; /**< Length of unique field */
char *devname; /**< For /proc/interrupts */