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authorDave Airlie <airlied@panoply-rh.(none)>2008-03-17 16:32:27 +1000
committerDave Airlie <airlied@panoply-rh.(none)>2008-03-17 16:38:15 +1000
commitd1513528d7e1a7bd119468087baa6839897627f4 (patch)
treefb7163134c32d2a5f9389f1d4da659b4ec76bb22 /linux-core
parent631c6af4d926fd1fe73f017cfb032538cee7ea7d (diff)
drm: select the correct master to attempt to remove the lock from.
When destroying DRI sarea, make sure you use the master associated with the sarea and not the one currently in charge
Diffstat (limited to 'linux-core')
-rw-r--r--linux-core/drm_bufs.c12
1 files changed, 9 insertions, 3 deletions
diff --git a/linux-core/drm_bufs.c b/linux-core/drm_bufs.c
index 031f8ba0..f6ff75ab 100644
--- a/linux-core/drm_bufs.c
+++ b/linux-core/drm_bufs.c
@@ -380,10 +380,12 @@ int drm_rmmap_locked(struct drm_device *dev, drm_local_map_t *map)
struct drm_map_list *r_list = NULL, *list_t;
drm_dma_handle_t dmah;
int found = 0;
+ struct drm_master *master;
/* Find the list entry for the map and remove it */
list_for_each_entry_safe(r_list, list_t, &dev->maplist, head) {
if (r_list->map == map) {
+ master = r_list->master;
list_del(&r_list->head);
drm_ht_remove_key(&dev->map_hash,
r_list->user_token >> PAGE_SHIFT);
@@ -413,9 +415,13 @@ int drm_rmmap_locked(struct drm_device *dev, drm_local_map_t *map)
break;
case _DRM_SHM:
vfree(map->handle);
- dev->sigdata.lock = dev->primary->master->lock.hw_lock = NULL; /* SHM removed */
- dev->primary->master->lock.file_priv = NULL;
- wake_up_interruptible(&dev->primary->master->lock.lock_queue);
+ if (master) {
+ if (dev->sigdata.lock == master->lock.hw_lock)
+ dev->sigdata.lock = NULL;
+ master->lock.hw_lock = NULL; /* SHM removed */
+ master->lock.file_priv = NULL;
+ wake_up_interruptible(&master->lock.lock_queue);
+ }
break;
case _DRM_AGP:
case _DRM_SCATTER_GATHER: