From 6c51d1cfa0a370b48a157163340190cf5fd2346b Mon Sep 17 00:00:00 2001 From: Ben Skeggs <bskeggs@redhat.com> Date: Tue, 26 May 2009 10:35:52 +1000 Subject: [PATCH] drm: don't associate _DRM_DRIVER maps with a master A driver will use the _DRM_DRIVER map flag to indicate that it wants to be responsible for removing the map itself, bypassing the DRM's automagic cleanup code. Since the multi-master changes this has been broken, resulting in some drivers having their registers unmapped before it's finished with them. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com> --- drivers/gpu/drm/drm_bufs.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/drm_bufs.c b/drivers/gpu/drm/drm_bufs.c index 0411d912d82a..80a257554b30 100644 --- a/drivers/gpu/drm/drm_bufs.c +++ b/drivers/gpu/drm/drm_bufs.c @@ -371,7 +371,8 @@ static int drm_addmap_core(struct drm_device * dev, resource_size_t offset, list->user_token = list->hash.key << PAGE_SHIFT; mutex_unlock(&dev->struct_mutex); - list->master = dev->primary->master; + if (!(map->flags & _DRM_DRIVER)) + list->master = dev->primary->master; *maplist = list; return 0; } -- GitLab