linux-kernel - [PATCH 1/2] staging: android: ion: Cleanup ion_page_pool_alloc

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Date:   Wed, 7 Feb 2018 11:59:45 +0800
From:   Yisheng Xie <xieyisheng1@...wei.com>
To:     <gregkh@...uxfoundation.org>, <labbott@...hat.com>
CC:     <devel@...verdev.osuosl.org>, <linux-kernel@...r.kernel.org>,
        Yisheng Xie <xieyisheng1@...wei.com>
Subject: [PATCH 1/2] staging: android: ion: Cleanup ion_page_pool_alloc_pages

ion_page_pool_alloc_pages calls alloc_pages to allocate pages for page
pools. If alloc_pages return NULL, it will return NULL, or it will
return the pages allocate from alloc_pages. So we can just return
alloc_pages without any judgement.

Signed-off-by: Yisheng Xie <xieyisheng1@...wei.com>
---
 drivers/staging/android/ion/ion_page_pool.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/android/ion/ion_page_pool.c b/drivers/staging/android/ion/ion_page_pool.c
index e3a6e32..6d2caf0 100644
--- a/drivers/staging/android/ion/ion_page_pool.c
+++ b/drivers/staging/android/ion/ion_page_pool.c
@@ -11,13 +11,9 @@
 
 #include "ion.h"
 
-static void *ion_page_pool_alloc_pages(struct ion_page_pool *pool)
+static inline struct page *ion_page_pool_alloc_pages(struct ion_page_pool *pool)
 {
-	struct page *page = alloc_pages(pool->gfp_mask, pool->order);
-
-	if (!page)
-		return NULL;
-	return page;
+	return alloc_pages(pool->gfp_mask, pool->order);
 }
 
 static void ion_page_pool_free_pages(struct ion_page_pool *pool,
-- 
1.7.12.4