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[83.9.3.193]) by smtp.gmail.com with ESMTPSA id v17-20020ac25591000000b004f640b0fb04sm324158lfg.212.2023.06.20.04.43.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 20 Jun 2023 04:43:28 -0700 (PDT) From: Konrad Dybcio Date: Tue, 20 Jun 2023 13:43:20 +0200 Subject: [PATCH v2 1/2] drm/msm/dsi: Use pm_runtime_resume_and_get to prevent refcnt leaks MIME-Version: 1.0 Message-Id: <20230620-topic-dsiphy_rpm-v2-1-a11a751f34f0@linaro.org> References: <20230620-topic-dsiphy_rpm-v2-0-a11a751f34f0@linaro.org> In-Reply-To: <20230620-topic-dsiphy_rpm-v2-0-a11a751f34f0@linaro.org> To: Rob Clark , Abhinav Kumar , Dmitry Baryshkov , Sean Paul , David Airlie , Daniel Vetter Cc: Marijn Suijten , linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, linux-kernel@vger.kernel.org, Konrad Dybcio X-Mailer: b4 0.12.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1687261406; l=890; i=konrad.dybcio@linaro.org; s=20230215; h=from:subject:message-id; bh=buVQjKrJgv7wbUnC7ZgzaKf+8COn6Ol+mrW/ngymkWo=; b=/85q0mWQJ5T3oFFwScs4/F3tDkZu+UWJLiVNpaitT9ghjNJivTGYrvtDPlQA8FRkDIregMkuD 0uOuTGShsmHBq/dKjr5gKhHVyS6+UPlN8aV2qZqbHD0Rypalbpc56MS X-Developer-Key: i=konrad.dybcio@linaro.org; a=ed25519; pk=iclgkYvtl2w05SSXO5EjjSYlhFKsJ+5OSZBjOkQuEms= X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1769222955894713006?= X-GMAIL-MSGID: =?utf-8?q?1769222955894713006?= This helper has been introduced to avoid programmer errors (missing _put calls leading to dangling refcnt) when using pm_runtime_get, use it. While at it, start checking the return value. Signed-off-by: Konrad Dybcio Reviewed-by: Dmitry Baryshkov --- drivers/gpu/drm/msm/dsi/phy/dsi_phy.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c index 9d5795c58a98..2f319e0eb74f 100644 --- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c +++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c @@ -516,7 +516,9 @@ static int dsi_phy_enable_resource(struct msm_dsi_phy *phy) struct device *dev = &phy->pdev->dev; int ret; - pm_runtime_get_sync(dev); + ret = pm_runtime_resume_and_get(dev); + if (ret) + return ret; ret = clk_prepare_enable(phy->ahb_clk); if (ret) {