linux-kernel - [PATCH][next] dma-buf: heaps: remove redundant assignment to variable ret

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Message-Id: <20191030150253.10596-1-colin.king@canonical.com>
Date:   Wed, 30 Oct 2019 15:02:53 +0000
From:   Colin King <colin.king@...onical.com>
To:     Sumit Semwal <sumit.semwal@...aro.org>,
        "Andrew F . Davis" <afd@...com>,
        Benjamin Gaignard <benjamin.gaignard@...aro.org>,
        Liam Mark <lmark@...eaurora.org>,
        Laura Abbott <labbott@...hat.com>,
        Brian Starkey <brian.starkey@....com>,
        John Stultz <john.stultz@...aro.org>,
        linux-media@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        linaro-mm-sig@...ts.linaro.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH][next] dma-buf: heaps: remove redundant assignment to variable ret

From: Colin Ian King <colin.king@...onical.com>

The variable ret is being assigned with a value that is never
read, it is being re-assigned the same value on the err0 exit
path. The assignment is redundant and hence can be removed.

Addresses-Coverity: ("Unused value")
Fixes: 47a32f9c1226 ("dma-buf: heaps: Add system heap to dmabuf heaps")
Signed-off-by: Colin Ian King <colin.king@...onical.com>
---
 drivers/dma-buf/heaps/system_heap.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/dma-buf/heaps/system_heap.c b/drivers/dma-buf/heaps/system_heap.c
index 455782efbb32..817a1667bd57 100644
--- a/drivers/dma-buf/heaps/system_heap.c
+++ b/drivers/dma-buf/heaps/system_heap.c
@@ -55,10 +55,8 @@ static int system_heap_allocate(struct dma_heap *heap,
 	helper_buffer->pages = kmalloc_array(helper_buffer->pagecount,
 					     sizeof(*helper_buffer->pages),
 					     GFP_KERNEL);
-	if (!helper_buffer->pages) {
-		ret = -ENOMEM;
+	if (!helper_buffer->pages)
 		goto err0;
-	}
 
 	for (pg = 0; pg < helper_buffer->pagecount; pg++) {
 		/*
-- 
2.20.1