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From: Jiaqi <shijiaqi_develop@163.com>
To: dri-devel@lists.freedesktop.org
Cc: Sandy Huang <hjc@rock-chips.com>,
	Heiko Stuebner <heiko@sntech.de>,
	David Airlie <airlied@gmail.com>, Daniel Vetter <daniel@ffwll.ch>,
	Philipp Zabel <p.zabel@pengutronix.de>,
	linux-arm-kernel@lists.infradead.org,
	linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: [PATCH v3 3/6] drm/rockchip: Fix vop2_create_crtcs() error path cleanup in vop2_bind()
Date: Sat, 09 May 2026 16:33:45 +0800	[thread overview]
Message-ID: <177831562588.322716.15278219029796776135@163.com> (raw)
In-Reply-To: <177831560568.322716.7926332149561323511@163.com>

In vop2_bind(), when vop2_create_crtcs() fails, the function returns
immediately without calling vop2_destroy_crtcs(). This means any
of_node references stored in vp->crtc.port by vop2_create_crtcs() are
leaked, as they are only released in vop2_destroy_crtcs().

Fix by ensuring vop2_create_crtcs() failures go through the err_crtcs
label, which calls vop2_destroy_crtcs() to properly release all
resources including of_node references.

Note: the IRQ registered via devm_request_irq() earlier in vop2_bind()
is managed by devres and must NOT be manually freed in the error path.
Devres will automatically release it when the device is unbound or
released by the component framework.

Signed-off-by: Jiaqi <shijiaqi_develop@163.com>
---
 drivers/gpu/drm/rockchip/rockchip_drm_vop2.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
index 8afabe2118a9..1234567890ab 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
@@ -2735,7 +2735,7 @@ static int vop2_bind(struct device *dev, struct device *master, void *data)
 
 	ret = vop2_create_crtcs(vop2);
 	if (ret)
-		return ret;
+		goto err_crtcs;
 
 	ret = vop2_find_rgb_encoder(vop2);
 	if (ret >= 0) {
--
2.40.0



  parent reply	other threads:[~2026-05-09  8:34 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-05-09  8:33 [PATCH v3 0/6] drm/rockchip: Fix error handling and resource leaks in Rockchip DRM drivers Jiaqi
2026-05-09  8:33 ` [PATCH v3 1/6] drm/rockchip: Fix of_node reference leak in rockchip_drm_encoder_set_crtc_endpoint_id() Jiaqi
2026-05-09  8:33 ` [PATCH v3 2/6] drm/rockchip: Fix dangling crtc->state in vop2_crtc_reset() Jiaqi
2026-05-09  8:33 ` Jiaqi [this message]
2026-05-09  8:33 ` [PATCH v3 4/6] drm/rockchip: Fix vmap address caching in rockchip_gem_prime_vmap() Jiaqi
2026-05-09  8:33 ` [PATCH v3 5/6] drm/rockchip: Fix leaked vblank event in vop_crtc_atomic_disable() Jiaqi
2026-05-09  8:34 ` [PATCH v3 6/6] drm/rockchip: Check return value of cdn_dp_grf_write() in error path Jiaqi

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