linux-kernel - [PATCH] drivers: net: xgene: initialize slots

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Date:   Thu,  8 Dec 2016 11:17:54 +0000
From:   Colin King <colin.king@...onical.com>
To:     Iyappan Subramanian <isubramanian@....com>,
        Keyur Chudgar <kchudgar@....com>, netdev@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org
Subject: [PATCH] drivers: net: xgene: initialize slots

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

static analysis using cppcheck detected that slots was uninitialized.
Fix this by initializing it to buf_pool->slots - 1

Found using static analysis with CoverityScan, CID #1387620

Fixes: a9380b0f7be818 ("drivers: net: xgene: Add support for Jumbo frame")
Signed-off-by: Colin Ian King <colin.king@...onical.com>
---
 drivers/net/ethernet/apm/xgene/xgene_enet_main.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_main.c b/drivers/net/ethernet/apm/xgene/xgene_enet_main.c
index 6c7eea8..899163c 100644
--- a/drivers/net/ethernet/apm/xgene/xgene_enet_main.c
+++ b/drivers/net/ethernet/apm/xgene/xgene_enet_main.c
@@ -636,6 +636,7 @@ static void xgene_enet_free_pagepool(struct xgene_enet_desc_ring *buf_pool,
 
 	dev = ndev_to_dev(buf_pool->ndev);
 	head = buf_pool->head;
+	slots = buf_pool->slots - 1;
 
 	for (i = 0; i < 4; i++) {
 		frag_size = xgene_enet_get_data_len(le64_to_cpu(desc[i ^ 1]));
-- 
2.10.2