linux-kernel - [RFC PATCH v3 2/5] drm/rockchip: Fix error handling path in rockchip_dp

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20171017080925.23763-3-jeffy.chen@rock-chips.com>
Date:   Tue, 17 Oct 2017 16:09:22 +0800
From:   Jeffy Chen <jeffy.chen@...k-chips.com>
To:     linux-kernel@...r.kernel.org
Cc:     dmitry.torokhov@...il.com, heiko@...ech.de,
        briannorris@...omium.org, rjw@...ysocki.net, dianders@...omium.org,
        tfiga@...omium.org, broonie@...nel.org, seanpaul@...omium.org,
        Jeffy Chen <jeffy.chen@...k-chips.com>,
        Mark Yao <mark.yao@...k-chips.com>,
        dri-devel@...ts.freedesktop.org,
        linux-rockchip@...ts.infradead.org,
        David Airlie <airlied@...ux.ie>,
        linux-arm-kernel@...ts.infradead.org
Subject: [RFC PATCH v3 2/5] drm/rockchip: Fix error handling path in rockchip_dp_bind()

Add missing error handling in rockchip_dp_bind().

Fixes: 9e32e16e9e98 ("drm: rockchip: dp: add rockchip platform dp driver")
Signed-off-by: Jeffy Chen <jeffy.chen@...k-chips.com>
---

Changes in v3: None
Changes in v2: None

 drivers/gpu/drm/rockchip/analogix_dp-rockchip.c | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
index 4d3f6ad0abdd..cb8941e8bcdd 100644
--- a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
+++ b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
@@ -371,7 +371,7 @@ static int rockchip_dp_bind(struct device *dev, struct device *master,
 	ret = rockchip_dp_drm_create_encoder(dp);
 	if (ret) {
 		DRM_ERROR("failed to create drm encoder\n");
-		return ret;
+		goto err_deinit_dp;
 	}
 
 	dp->plat_data.encoder = &dp->encoder;
@@ -387,7 +387,17 @@ static int rockchip_dp_bind(struct device *dev, struct device *master,
 
 	rockchip_drm_psr_register(&dp->encoder, analogix_dp_psr_set);
 
-	return analogix_dp_bind(dev, dp->drm_dev, &dp->plat_data);
+	ret = analogix_dp_bind(dev, dp->drm_dev, &dp->plat_data);
+	if (ret < 0)
+		goto err_unreg_psr;
+	return 0;
+
+err_unreg_psr:
+	rockchip_drm_psr_unregister(&dp->encoder);
+	rockchip_dp_drm_encoder_destroy(&dp->encoder);
+err_deinit_dp:
+	clk_disable_unprepare(dp->pclk);
+	return ret;
 }
 
 static void rockchip_dp_unbind(struct device *dev, struct device *master,
-- 
2.11.0