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Tue, 15 Jun 2021 03:44:53 -0700 Envelope-to: adrian.hunter@intel.com, ulf.hansson@linaro.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mmc@vger.kernel.org Received: from [172.23.64.106] (port=49389 helo=xhdvnc125.xilinx.com) by smtp.xilinx.com with esmtp (Exim 4.90) (envelope-from ) id 1lt6Yu-0008Kc-Uc; Tue, 15 Jun 2021 03:44:53 -0700 Received: by xhdvnc125.xilinx.com (Postfix, from userid 16987) id D42181222C7; Tue, 15 Jun 2021 16:13:59 +0530 (IST) From: Manish Narani To: , , CC: , , , Manish Narani Subject: [PATCH 4/7] mmc: host: sdhci-of-arasan: Check return value of non-void funtions Date: Tue, 15 Jun 2021 16:13:54 +0530 Message-ID: <1623753837-21035-5-git-send-email-manish.narani@xilinx.com> X-Mailer: git-send-email 2.1.1 In-Reply-To: <1623753837-21035-1-git-send-email-manish.narani@xilinx.com> References: <1623753837-21035-1-git-send-email-manish.narani@xilinx.com> MIME-Version: 1.0 X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 4a06f48b-6f1a-4cbd-b42a-08d92fea9e02 X-MS-TrafficTypeDiagnostic: BYAPR02MB5735: X-Microsoft-Antispam-PRVS: X-Auto-Response-Suppress: DR, RN, NRN, OOF, AutoReply X-MS-Oob-TLC-OOBClassifiers: OLM:270; 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DIR:OUT; SFP:1101; X-OriginatorOrg: xilinx.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 15 Jun 2021 10:44:56.8046 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 4a06f48b-6f1a-4cbd-b42a-08d92fea9e02 X-MS-Exchange-CrossTenant-Id: 657af505-d5df-48d0-8300-c31994686c5c X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=657af505-d5df-48d0-8300-c31994686c5c; Ip=[149.199.62.198]; Helo=[xsj-pvapexch02.xlnx.xilinx.com] X-MS-Exchange-CrossTenant-AuthSource: BN1NAM02FT059.eop-nam02.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR02MB5735 Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org At a couple of places, the return values of the non-void functions were not getting checked. This was reported by the coverity tool. Modify the code to check the return values of the same. Addresses-Coverity: ("check_return") Signed-off-by: Manish Narani --- drivers/mmc/host/sdhci-of-arasan.c | 18 +++++++++++++++--- 1 file changed, 15 insertions(+), 3 deletions(-) diff --git a/drivers/mmc/host/sdhci-of-arasan.c b/drivers/mmc/host/sdhci-of-arasan.c index 1980d0b..98671a3 100644 --- a/drivers/mmc/host/sdhci-of-arasan.c +++ b/drivers/mmc/host/sdhci-of-arasan.c @@ -273,7 +273,12 @@ static void sdhci_arasan_set_clock(struct sdhci_host *host, unsigned int clock) * through low speeds without power cycling. */ sdhci_set_clock(host, host->max_clk); - phy_power_on(sdhci_arasan->phy); + if (phy_power_on(sdhci_arasan->phy)) { + pr_err("%s: Cannot power on phy.\n", + mmc_hostname(host->mmc)); + return; + } + sdhci_arasan->is_phy_on = true; /* @@ -323,7 +328,12 @@ static void sdhci_arasan_set_clock(struct sdhci_host *host, unsigned int clock) msleep(20); if (ctrl_phy) { - phy_power_on(sdhci_arasan->phy); + if (phy_power_on(sdhci_arasan->phy)) { + pr_err("%s: Cannot power on phy.\n", + mmc_hostname(host->mmc)); + return; + } + sdhci_arasan->is_phy_on = true; } } @@ -479,7 +489,9 @@ static int sdhci_arasan_suspend(struct device *dev) ret = phy_power_off(sdhci_arasan->phy); if (ret) { dev_err(dev, "Cannot power off phy.\n"); - sdhci_resume_host(host); + if (sdhci_resume_host(host)) + dev_err(dev, "Cannot resume host.\n"); + return ret; } sdhci_arasan->is_phy_on = false;