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Mon, 23 Mar 2020 07:50:48 -0700 (PDT) From: Daniel Vetter To: DRI Development Subject: [PATCH 37/51] drm/rockchip: Drop explicit drm_mode_config_cleanup call Date: Mon, 23 Mar 2020 15:49:36 +0100 Message-Id: <20200323144950.3018436-38-daniel.vetter@ffwll.ch> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200323144950.3018436-1-daniel.vetter@ffwll.ch> References: <20200323144950.3018436-1-daniel.vetter@ffwll.ch> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200323_075050_964657_C5CCA41B X-CRM114-Status: GOOD ( 15.67 ) X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.3 on bombadil.infradead.org summary: Content analysis details: (-0.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [2a00:1450:4864:20:0:0:0:344 listed in] [list.dnswl.org] 0.0 SPF_NONE SPF: sender does not publish an SPF Record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: =?utf-8?q?Heiko_St=C3=BCbner?= , Francesco Lavra , Daniel Vetter , Intel Graphics Development , Sandy Huang , linux-rockchip@lists.infradead.org, Laurent Pinchart , Thomas Zimmermann , Daniel Vetter , Sam Ravnborg , linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org It's (almost, there's some iommu stuff without significance) right above the drm_dev_put(). This is made possible by a preceeding patch which added a drmm_ cleanup action to drm_mode_config_init(), hence all we need to do to ensure that drm_mode_config_cleanup() is run on final drm_device cleanup is check the new error code for _init(). Aside: Another driver with a bit much devm_kzalloc, which should probably use drmm_kzalloc instead ... v2: Explain why this cleanup is possible (Laurent). v3: Jump out at the right label (Francesco) v4: Try again, kbuild caught that I didn't build test this properly ... v5: Use drmm_mode_config_init() for more clarity (Sam, Thomas) Acked-by: Sam Ravnborg Cc: Sam Ravnborg Cc: Thomas Zimmermann Cc: Francesco Lavra Cc: Laurent Pinchart Signed-off-by: Daniel Vetter Cc: Sandy Huang Cc: "Heiko Stübner" Cc: linux-arm-kernel@lists.infradead.org Cc: linux-rockchip@lists.infradead.org --- drivers/gpu/drm/rockchip/rockchip_drm_drv.c | 14 +++++--------- 1 file changed, 5 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c index 20ecb1508a22..0f3eb392fe39 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c @@ -135,14 +135,16 @@ static int rockchip_drm_bind(struct device *dev) if (ret) goto err_free; - drm_mode_config_init(drm_dev); + ret = drmm_mode_config_init(drm_dev); + if (ret) + goto err_iommu_cleanup; rockchip_drm_mode_config_init(drm_dev); /* Try to bind all sub drivers. */ ret = component_bind_all(dev, drm_dev); if (ret) - goto err_mode_config_cleanup; + goto err_iommu_cleanup; ret = drm_vblank_init(drm_dev, drm_dev->mode_config.num_crtc); if (ret) @@ -173,12 +175,9 @@ static int rockchip_drm_bind(struct device *dev) rockchip_drm_fbdev_fini(drm_dev); err_unbind_all: component_unbind_all(dev, drm_dev); -err_mode_config_cleanup: - drm_mode_config_cleanup(drm_dev); +err_iommu_cleanup: rockchip_iommu_cleanup(drm_dev); err_free: - drm_dev->dev_private = NULL; - dev_set_drvdata(dev, NULL); drm_dev_put(drm_dev); return ret; } @@ -194,11 +193,8 @@ static void rockchip_drm_unbind(struct device *dev) drm_atomic_helper_shutdown(drm_dev); component_unbind_all(dev, drm_dev); - drm_mode_config_cleanup(drm_dev); rockchip_iommu_cleanup(drm_dev); - drm_dev->dev_private = NULL; - dev_set_drvdata(dev, NULL); drm_dev_put(drm_dev); }