drm/amd: use list_for_each_entry for list iteration.

list_for_each() can be replaced by the more concise
list_for_each_entry() here for iteration over the lists.
This change was reported by coccinelle.
Signed-off-by: Wambui Karuga <wambui.karugax@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_irq.c

@@ -111,17 +111,12 @@ static void init_handler_common_data(struct amdgpu_dm_irq_handler_data *hcd,
  */
 static void dm_irq_work_func(struct work_struct *work)
 {
-	struct list_head *entry;
 	struct irq_list_head *irq_list_head =
 		container_of(work, struct irq_list_head, work);
 	struct list_head *handler_list = &irq_list_head->head;
 	struct amdgpu_dm_irq_handler_data *handler_data;
 
-	list_for_each(entry, handler_list) {
-		handler_data = list_entry(entry,
-					  struct amdgpu_dm_irq_handler_data,
-					  list);
-
+	list_for_each_entry(handler_data, handler_list, list) {
 		DRM_DEBUG_KMS("DM_IRQ: work_func: for dal_src=%d\n",
 				handler_data->irq_source);
 
@@ -528,19 +523,13 @@ static void amdgpu_dm_irq_immediate_work(struct amdgpu_device *adev,
 					 enum dc_irq_source irq_source)
 {
 	struct amdgpu_dm_irq_handler_data *handler_data;
-	struct list_head *entry;
 	unsigned long irq_table_flags;
 
 	DM_IRQ_TABLE_LOCK(adev, irq_table_flags);
 
-	list_for_each(
-		entry,
-		&adev->dm.irq_handler_list_high_tab[irq_source]) {
-
-		handler_data = list_entry(entry,
-					  struct amdgpu_dm_irq_handler_data,
-					  list);
-
+	list_for_each_entry(handler_data,
+			    &adev->dm.irq_handler_list_high_tab[irq_source],
+			    list) {
 		/* Call a subcomponent which registered for immediate
 		 * interrupt notification */
 		handler_data->handler(handler_data->handler_arg);