Merge tag 'for-linus-timers-conversion-final-v4.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux into timers/urgent

Pull the last batch of manual timer conversions from Kees Cook:

 - final batch of "non trivial" timer conversions (multi-tree dependencies,
   things Coccinelle couldn't handle, etc).

 - treewide conversions via Coccinelle, in 4 steps:
   - DEFINE_TIMER() functions converted to struct timer_list * argument
   - init_timer() -> setup_timer()
   - setup_timer() -> timer_setup()
   - setup_timer() -> timer_setup() (with a single embedded structure)

 - deprecated timer API removals (init_timer(), setup_*timer())

 - finalization of new API (remove global casts)

1 files changed, 7 insertions, 10 deletions

diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c
index c55f338e380b..55d6182555c7 100644
--- a/drivers/gpu/drm/drm_gem.c
+++ b/drivers/gpu/drm/drm_gem.c
@@ -282,15 +282,6 @@ drm_gem_handle_delete(struct drm_file *filp, u32 handle)
 {
 	struct drm_gem_object *obj;
 
-	/* This is gross. The idr system doesn't let us try a delete and
-	 * return an error code.  It just spews if you fail at deleting.
-	 * So, we have to grab a lock around finding the object and then
-	 * doing the delete on it and dropping the refcount, or the user
-	 * could race us to double-decrement the refcount and cause a
-	 * use-after-free later.  Given the frequency of our handle lookups,
-	 * we may want to use ida for number allocation and a hash table
-	 * for the pointers, anyway.
-	 */
 	spin_lock(&filp->table_lock);
 
 	/* Check if we currently have a reference on the object */
@@ -334,6 +325,12 @@ int drm_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev,
 	if (!obj)
 		return -ENOENT;
 
+	/* Don't allow imported objects to be mapped */
+	if (obj->import_attach) {
+		ret = -EINVAL;
+		goto out;
+	}
+
 	ret = drm_gem_create_mmap_offset(obj);
 	if (ret)
 		goto out;
@@ -537,7 +534,7 @@ EXPORT_SYMBOL(drm_gem_create_mmap_offset);
  * Note that you are not allowed to change gfp-zones during runtime. That is,
  * shmem_read_mapping_page_gfp() must be called with the same gfp_zone(gfp) as
  * set during initialization. If you have special zone constraints, set them
- * after drm_gem_init_object() via mapping_set_gfp_mask(). shmem-core takes care
+ * after drm_gem_object_init() via mapping_set_gfp_mask(). shmem-core takes care
  * to keep pages in the required zone during swap-in.
  */
 struct page **drm_gem_get_pages(struct drm_gem_object *obj)