From patchwork Mon Feb 15 12:05:32 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Colin King X-Patchwork-Id: 12088011 X-Patchwork-Delegate: kuba@kernel.org Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9D706C433E6 for ; Mon, 15 Feb 2021 12:06:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6550764DEB for ; Mon, 15 Feb 2021 12:06:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229974AbhBOMGb (ORCPT ); Mon, 15 Feb 2021 07:06:31 -0500 Received: from youngberry.canonical.com ([91.189.89.112]:46546 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229666AbhBOMGV (ORCPT ); Mon, 15 Feb 2021 07:06:21 -0500 Received: from 1.general.cking.uk.vpn ([10.172.193.212] helo=localhost) by youngberry.canonical.com with esmtpsa (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.86_2) (envelope-from ) id 1lBcdA-00068q-JZ; Mon, 15 Feb 2021 12:05:32 +0000 From: Colin King To: Kalle Valo , "David S . Miller" , Jakub Kicinski , =?utf-8?b?UmFmYcWCIE1pxYJlY2tp?= , "John W . Linville" , linux-wireless@vger.kernel.org, b43-dev@lists.infradead.org, netdev@vger.kernel.org Cc: kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] b43: N-PHY: Fix the update of coef for the PHY revision >= 3case Date: Mon, 15 Feb 2021 12:05:32 +0000 Message-Id: <20210215120532.76889-1-colin.king@canonical.com> X-Mailer: git-send-email 2.30.0 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org From: Colin Ian King The documentation for the PHY update [1] states: Loop 4 times with index i If PHY Revision >= 3 Copy table[i] to coef[i] Otherwise Set coef[i] to 0 the copy of the table to coef is currently implemented the wrong way around, table is being updated from uninitialized values in coeff. Fix this by swapping the assignment around. [1] https://bcm-v4.sipsolutions.net/802.11/PHY/N/RestoreCal/ Fixes: 2f258b74d13c ("b43: N-PHY: implement restoring general configuration") Addresses-Coverity: ("Uninitialized scalar variable") Signed-off-by: Colin Ian King Acked-by: Larry Finger --- drivers/net/wireless/broadcom/b43/phy_n.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/broadcom/b43/phy_n.c b/drivers/net/wireless/broadcom/b43/phy_n.c index b669dff24b6e..665b737fbb0d 100644 --- a/drivers/net/wireless/broadcom/b43/phy_n.c +++ b/drivers/net/wireless/broadcom/b43/phy_n.c @@ -5311,7 +5311,7 @@ static void b43_nphy_restore_cal(struct b43_wldev *dev) for (i = 0; i < 4; i++) { if (dev->phy.rev >= 3) - table[i] = coef[i]; + coef[i] = table[i]; else coef[i] = 0; }