linux-kernel - [PATCH 09/14] GPU-DRM-TTM: Return directly after a failed kzalloc() in ttm_dma_page_alloc

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Date:   Thu, 22 Sep 2016 19:41:20 +0200
From:   SF Markus Elfring <elfring@...rs.sourceforge.net>
To:     dri-devel@...ts.freedesktop.org,
        Daniel Vetter <daniel.vetter@...ll.ch>,
        David Airlie <airlied@...ux.ie>,
        Emil Velikov <emil.l.velikov@...il.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org,
        Julia Lawall <julia.lawall@...6.fr>
Subject: [PATCH 09/14] GPU-DRM-TTM: Return directly after a failed kzalloc()
 in ttm_dma_page_alloc_init()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Thu, 22 Sep 2016 16:16:36 +0200

* Return directly after a memory allocation failed in this function
  at the beginning.

* Delete the explicit initialisation for the local variable "ret"
  which became unnecessary with this refactoring.

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

diff --git a/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c b/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c
index e3f5542..feba278 100644
--- a/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c
+++ b/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c
@@ -1080,7 +1080,7 @@ static void ttm_dma_pool_mm_shrink_fini(struct ttm_pool_manager *manager)
 
 int ttm_dma_page_alloc_init(struct ttm_mem_global *glob, unsigned max_pages)
 {
-	int ret = -ENOMEM;
+	int ret;
 
 	WARN_ON(_manager);
 
@@ -1088,7 +1088,7 @@ int ttm_dma_page_alloc_init(struct ttm_mem_global *glob, unsigned max_pages)
 
 	_manager = kzalloc(sizeof(*_manager), GFP_KERNEL);
 	if (!_manager)
-		goto err;
+		return -ENOMEM;
 
 	mutex_init(&_manager->lock);
 	INIT_LIST_HEAD(&_manager->pools);
-- 
2.10.0