Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965021AbeALRqg (ORCPT + 1 other); Fri, 12 Jan 2018 12:46:36 -0500 Received: from youngberry.canonical.com ([91.189.89.112]:34879 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S964803AbeALRqf (ORCPT ); Fri, 12 Jan 2018 12:46:35 -0500 From: Colin King To: Michael Chan , netdev@vger.kernel.org Cc: kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH][next] bnxt_en: ensure len is ininitialized to zero Date: Fri, 12 Jan 2018 17:46:33 +0000 Message-Id: <20180112174633.28719-1-colin.king@canonical.com> X-Mailer: git-send-email 2.15.1 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Return-Path: From: Colin Ian King In the case where cmp_type == CMP_TYPE_RX_L2_TPA_START_CMP the exit return path is via label next_rx_no_prod and cpr->rx_bytes is being updated by an uninitialized value from len. Fix this by initializing len to zero. Detected by CoverityScan, CID#1463807 ("Uninitialized scalar variable") Fixes: 6a8788f25625 ("bnxt_en: add support for software dynamic interrupt moderation") Signed-off-by: Colin Ian King --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index cf6ebf1e324b..5b5c4f266f1b 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -1482,7 +1482,7 @@ static int bnxt_rx_pkt(struct bnxt *bp, struct bnxt_napi *bnapi, u32 *raw_cons, u32 tmp_raw_cons = *raw_cons; u16 cfa_code, cons, prod, cp_cons = RING_CMP(tmp_raw_cons); struct bnxt_sw_rx_bd *rx_buf; - unsigned int len; + unsigned int len = 0; u8 *data_ptr, agg_bufs, cmp_type; dma_addr_t dma_addr; struct sk_buff *skb; -- 2.15.1