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Fri, 01 Jan 2021 08:57:55 -0800 (PST) From: Yangtao Li To: myungjoo.ham@samsung.com, kyungmin.park@samsung.com, cw00.choi@samsung.com, krzk@kernel.org, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com, digetx@gmail.com, thierry.reding@gmail.com, jonathanh@nvidia.com, yuq825@gmail.com, airlied@linux.ie, daniel@ffwll.ch, robdclark@gmail.com, sean@poorly.run, robh@kernel.org, tomeu.vizoso@collabora.com, steven.price@arm.com, alyssa.rosenzweig@collabora.com, stanimir.varbanov@linaro.org, agross@kernel.org, bjorn.andersson@linaro.org, mchehab@kernel.org, lukasz.luba@arm.com, adrian.hunter@intel.com, ulf.hansson@linaro.org, vireshk@kernel.org, nm@ti.com, sboyd@kernel.org, broonie@kernel.org, gregkh@linuxfoundation.org, jirislaby@kernel.org, rjw@rjwysocki.net, jcrouse@codeaurora.org, hoegsberg@google.com, eric@anholt.net, tzimmermann@suse.de, marijn.suijten@somainline.org, gustavoars@kernel.org, emil.velikov@collabora.com, jonathan@marek.ca, akhilpo@codeaurora.org, smasetty@codeaurora.org, airlied@redhat.com, masneyb@onstation.org, kalyan_t@codeaurora.org, tanmay@codeaurora.org, tiny.windzz@gmail.com, ddavenport@chromium.org, jsanka@codeaurora.org, rnayak@codeaurora.org, tongtiangen@huawei.com, miaoqinglang@huawei.com, khsieh@codeaurora.org, abhinavk@codeaurora.org, chandanu@codeaurora.org, groeck@chromium.org, varar@codeaurora.org, mka@chromium.org, harigovi@codeaurora.org, rikard.falkeborn@gmail.com, natechancellor@gmail.com, georgi.djakov@linaro.org, akashast@codeaurora.org, parashar@codeaurora.org, dianders@chromium.org Cc: linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-tegra@vger.kernel.org, dri-devel@lists.freedesktop.org, lima@lists.freedesktop.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, linux-media@vger.kernel.org, linux-mmc@vger.kernel.org, linux-spi@vger.kernel.org, linux-serial@vger.kernel.org Subject: [PATCH 11/31] mmc: sdhci-msm: fix potential mem leak in sdhci_msm_probe() Date: Fri, 1 Jan 2021 16:54:47 +0000 Message-Id: <20210101165507.19486-12-tiny.windzz@gmail.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210101165507.19486-1-tiny.windzz@gmail.com> References: <20210101165507.19486-1-tiny.windzz@gmail.com> Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org We should use dev_pm_opp_put_clkname() to free opp table each time dev_pm_opp_of_add_table() got error. Signed-off-by: Yangtao Li --- drivers/mmc/host/sdhci-msm.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/mmc/host/sdhci-msm.c b/drivers/mmc/host/sdhci-msm.c index 9c7927b03253..094ef95f5ecc 100644 --- a/drivers/mmc/host/sdhci-msm.c +++ b/drivers/mmc/host/sdhci-msm.c @@ -2291,9 +2291,12 @@ static int sdhci_msm_probe(struct platform_device *pdev) /* OPP table is optional */ ret = dev_pm_opp_of_add_table(&pdev->dev); - if (ret && ret != -ENODEV) { - dev_err(&pdev->dev, "Invalid OPP table in Device tree\n"); - goto opp_put_clkname; + if (ret) { + dev_pm_opp_put_clkname(msm_host->opp_table); + if (ret != -ENODEV) { + dev_err(&pdev->dev, "Invalid OPP table in Device tree\n"); + goto bus_clk_disable; + } } /* Vote for maximum clock rate for maximum performance */ @@ -2461,7 +2464,6 @@ static int sdhci_msm_probe(struct platform_device *pdev) msm_host->bulk_clks); opp_cleanup: dev_pm_opp_of_remove_table(&pdev->dev); -opp_put_clkname: dev_pm_opp_put_clkname(msm_host->opp_table); bus_clk_disable: if (!IS_ERR(msm_host->bus_clk))