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From:   Yisheng Xie <xieyisheng1@huawei.com>
To:     <gregkh@linuxfoundation.org>, <labbott@redhat.com>
CC:     <devel@driverdev.osuosl.org>, <linux-kernel@vger.kernel.org>,
        Yisheng Xie <xieyisheng1@huawei.com>
Subject: [PATCH 1/2] staging: android: ion: Remove dead code in ion_page_pool_free
Date:   Mon, 5 Feb 2018 11:26:16 +0800
Message-ID: <1517801177-37021-1-git-send-email-xieyisheng1@huawei.com>
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Sender: linux-kernel-owner@vger.kernel.org
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ion_page_pool_add will always return 0, however ion_page_pool_free will
call ion_page_pool_free_pages when ion_page_pool_add's return value is
not 0, so it is a dead code which can be removed.

Signed-off-by: Yisheng Xie <xieyisheng1@huawei.com>
---
 drivers/staging/android/ion/ion_page_pool.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/staging/android/ion/ion_page_pool.c b/drivers/staging/android/ion/ion_page_pool.c
index 4452e28..150626f 100644
--- a/drivers/staging/android/ion/ion_page_pool.c
+++ b/drivers/staging/android/ion/ion_page_pool.c
@@ -79,13 +79,9 @@ struct page *ion_page_pool_alloc(struct ion_page_pool *pool)
 
 void ion_page_pool_free(struct ion_page_pool *pool, struct page *page)
 {
-	int ret;
-
 	BUG_ON(pool->order != compound_order(page));
 
-	ret = ion_page_pool_add(pool, page);
-	if (ret)
-		ion_page_pool_free_pages(pool, page);
+	ion_page_pool_add(pool, page);
 }
 
 static int ion_page_pool_total(struct ion_page_pool *pool, bool high)
-- 
1.7.12.4