From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751628AbeEBOaB (ORCPT ); Wed, 2 May 2018 10:30:01 -0400 Received: from youngberry.canonical.com ([91.189.89.112]:53044 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751501AbeEBO35 (ORCPT ); Wed, 2 May 2018 10:29:57 -0400 From: Colin King To: Liam Girdwood , Mark Brown , Jaroslav Kysela , Takashi Iwai , Andy Shevchenko , alsa-devel@alsa-project.org Cc: kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] ASoC: Intel: bytcr_rt565: fix missing assignment to ret_val Date: Wed, 2 May 2018 15:29:45 +0100 Message-Id: <20180502142945.31637-1-colin.king@canonical.com> X-Mailer: git-send-email 2.17.0 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 From: Colin Ian King Currently, the check that ret_val is not -ENOENT is always true and the quirk bit BYT_RY5651_MCLK_EN is never being cleared because ret_val is always zero at this point from a previous assignment earlier on. I believe that ret_val should actually be assigned to the return from devm_clk_get() as this can return -ENOENT (from a deeper call to clk_get_sys) and that was the original intention to check this. Detected by CoverityScan, CID#1460228 ("Logically dead code") Fixes: 02c0a3b3047f ("ASoC: Intel: bytcr_rt5651: add MCLK, quirks and cleanups") Signed-off-by: Colin Ian King --- sound/soc/intel/boards/bytcr_rt5651.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/sound/soc/intel/boards/bytcr_rt5651.c b/sound/soc/intel/boards/bytcr_rt5651.c index 3c7d93520c52..469e2695d121 100644 --- a/sound/soc/intel/boards/bytcr_rt5651.c +++ b/sound/soc/intel/boards/bytcr_rt5651.c @@ -856,9 +856,10 @@ static int snd_byt_rt5651_mc_probe(struct platform_device *pdev) if (byt_rt5651_quirk & BYT_RT5651_MCLK_EN) { priv->mclk = devm_clk_get(&pdev->dev, "pmc_plt_clk_3"); if (IS_ERR(priv->mclk)) { + ret_val = PTR_ERR(priv->mclk); dev_err(&pdev->dev, - "Failed to get MCLK from pmc_plt_clk_3: %ld\n", - PTR_ERR(priv->mclk)); + "Failed to get MCLK from pmc_plt_clk_3: %d\n", + ret_val); /* * Fall back to bit clock usage for -ENOENT (clock not * available likely due to missing dependencies), bail -- 2.17.0 From mboxrd@z Thu Jan 1 00:00:00 1970 From: Colin King Date: Wed, 02 May 2018 14:29:45 +0000 Subject: [PATCH] ASoC: Intel: bytcr_rt565: fix missing assignment to ret_val Message-Id: <20180502142945.31637-1-colin.king@canonical.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Liam Girdwood , Mark Brown , Jaroslav Kysela , Takashi Iwai , Andy Shevchenko , alsa-devel@alsa-project.org Cc: kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org From: Colin Ian King Currently, the check that ret_val is not -ENOENT is always true and the quirk bit BYT_RY5651_MCLK_EN is never being cleared because ret_val is always zero at this point from a previous assignment earlier on. I believe that ret_val should actually be assigned to the return from devm_clk_get() as this can return -ENOENT (from a deeper call to clk_get_sys) and that was the original intention to check this. Detected by CoverityScan, CID#1460228 ("Logically dead code") Fixes: 02c0a3b3047f ("ASoC: Intel: bytcr_rt5651: add MCLK, quirks and cleanups") Signed-off-by: Colin Ian King --- sound/soc/intel/boards/bytcr_rt5651.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/sound/soc/intel/boards/bytcr_rt5651.c b/sound/soc/intel/boards/bytcr_rt5651.c index 3c7d93520c52..469e2695d121 100644 --- a/sound/soc/intel/boards/bytcr_rt5651.c +++ b/sound/soc/intel/boards/bytcr_rt5651.c @@ -856,9 +856,10 @@ static int snd_byt_rt5651_mc_probe(struct platform_device *pdev) if (byt_rt5651_quirk & BYT_RT5651_MCLK_EN) { priv->mclk = devm_clk_get(&pdev->dev, "pmc_plt_clk_3"); if (IS_ERR(priv->mclk)) { + ret_val = PTR_ERR(priv->mclk); dev_err(&pdev->dev, - "Failed to get MCLK from pmc_plt_clk_3: %ld\n", - PTR_ERR(priv->mclk)); + "Failed to get MCLK from pmc_plt_clk_3: %d\n", + ret_val); /* * Fall back to bit clock usage for -ENOENT (clock not * available likely due to missing dependencies), bail -- 2.17.0