linux-kernel - [PATCH] drm_aux-dev: fix error handling in drm_dp_aux_dev

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Date:	Thu, 30 Jun 2016 00:52:15 +0300
From:	Alexey Khoroshilov <khoroshilov@...ras.ru>
To:	David Airlie <airlied@...ux.ie>
Cc:	Alexey Khoroshilov <khoroshilov@...ras.ru>,
	dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
	ldv-project@...uxtesting.org
Subject: [PATCH] drm_aux-dev: fix error handling in drm_dp_aux_dev_init()

If class_create() fails, there is no need for class_destroy().

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@...ras.ru>
---
 drivers/gpu/drm/drm_dp_aux_dev.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/drm_dp_aux_dev.c b/drivers/gpu/drm/drm_dp_aux_dev.c
index 3334baacf43d..734f86a345f6 100644
--- a/drivers/gpu/drm/drm_dp_aux_dev.c
+++ b/drivers/gpu/drm/drm_dp_aux_dev.c
@@ -355,8 +355,7 @@ int drm_dp_aux_dev_init(void)
 
 	drm_dp_aux_dev_class = class_create(THIS_MODULE, "drm_dp_aux_dev");
 	if (IS_ERR(drm_dp_aux_dev_class)) {
-		res = PTR_ERR(drm_dp_aux_dev_class);
-		goto out;
+		return PTR_ERR(drm_dp_aux_dev_class);
 	}
 	drm_dp_aux_dev_class->dev_groups = drm_dp_aux_groups;
 
-- 
1.9.1