[PATCH] drm/cirrus: Delete an unnecessary check before drm_gem_object_unreference_unlocked()

From	SF Markus Elfring <elfring@users.sourceforge.net>
Newsgroups	linux.kernel
Subject	[PATCH] drm/cirrus: Delete an unnecessary check before drm_gem_object_unreference_unlocked()
Date	2016-07-16 08:50 +0200
Message-ID	<rVrAd-pw-3@gated-at.bofh.it> (permalink)
References	(12 earlier) <mSsDN-4wa-59@gated-at.bofh.it> <mSsDN-4wa-61@gated-at.bofh.it> <mSsDN-4wa-63@gated-at.bofh.it> <mSsDN-4wa-65@gated-at.bofh.it> <mSsDN-4wa-33@gated-at.bofh.it>
Organization	linux.* mail to news gateway

Show all headers | View raw

From: Markus Elfring <elfring@users.sourceforge.net>
Date: Sat, 16 Jul 2016 08:28:13 +0200

The drm_gem_object_unreference_unlocked() function tests whether
its argument is NULL and then returns immediately.
Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
 drivers/gpu/drm/cirrus/cirrus_main.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/cirrus/cirrus_main.c b/drivers/gpu/drm/cirrus/cirrus_main.c
index 32d32c5..80446e2 100644
--- a/drivers/gpu/drm/cirrus/cirrus_main.c
+++ b/drivers/gpu/drm/cirrus/cirrus_main.c
@@ -17,8 +17,8 @@
 static void cirrus_user_framebuffer_destroy(struct drm_framebuffer *fb)
 {
 	struct cirrus_framebuffer *cirrus_fb = to_cirrus_framebuffer(fb);
-	if (cirrus_fb->obj)
-		drm_gem_object_unreference_unlocked(cirrus_fb->obj);
+
+	drm_gem_object_unreference_unlocked(cirrus_fb->obj);
 	drm_framebuffer_cleanup(fb);
 	kfree(fb);
 }
-- 
2.9.1

Back to linux.kernel | Previous | Next | Find similar | Unroll thread

Thread

[PATCH] drm/cirrus: Delete an unnecessary check before  drm_gem_object_unreference_unlocked() SF Markus Elfring <elfring@users.sourceforge.net> - 2016-07-16 08:50 +0200

csiph-web