From: Masahiro Yamada <yamada.masahiro@socionext.com>
Date: Mon, 12 Sep 2016 18:35:20 +0000 (+0900)
Subject: drm/vc4: cleanup with list_first_entry_or_null()
X-Git-Tag: v4.9-rc1~41^2~4^2~7
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=57b9f569447c4ab7b2a7e34a13e468311db4cd64;p=linux.git

drm/vc4: cleanup with list_first_entry_or_null()

The combo of list_empty() check and return list_first_entry()
can be replaced with list_first_entry_or_null().

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
---

diff --git a/drivers/gpu/drm/vc4/vc4_drv.h b/drivers/gpu/drm/vc4/vc4_drv.h
index 428e24919ef1..61c1902168a1 100644
--- a/drivers/gpu/drm/vc4/vc4_drv.h
+++ b/drivers/gpu/drm/vc4/vc4_drv.h
@@ -307,18 +307,15 @@ struct vc4_exec_info {
 static inline struct vc4_exec_info *
 vc4_first_bin_job(struct vc4_dev *vc4)
 {
-	if (list_empty(&vc4->bin_job_list))
-		return NULL;
-	return list_first_entry(&vc4->bin_job_list, struct vc4_exec_info, head);
+	return list_first_entry_or_null(&vc4->bin_job_list,
+					struct vc4_exec_info, head);
 }
 
 static inline struct vc4_exec_info *
 vc4_first_render_job(struct vc4_dev *vc4)
 {
-	if (list_empty(&vc4->render_job_list))
-		return NULL;
-	return list_first_entry(&vc4->render_job_list,
-				struct vc4_exec_info, head);
+	return list_first_entry_or_null(&vc4->render_job_list,
+					struct vc4_exec_info, head);
 }
 
 static inline struct vc4_exec_info *