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From: Miaoqian Lin <linmq006@gmail.com>
To: Emma Anholt <emma@anholt.net>, Maxime Ripard <mripard@kernel.org>,
	David Airlie <airlied@gmail.com>, Daniel Vetter <daniel@ffwll.ch>,
	Dave Stevenson <dave.stevenson@raspberrypi.com>,
	dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org
Cc: linmq006@gmail.com
Subject: [PATCH] drm/vc4: Fix refcount leak in vc4_hvs_bind
Date: Tue, 20 Dec 2022 15:25:44 +0400	[thread overview]
Message-ID: <20221220112545.1460168-1-linmq006@gmail.com> (raw)

rpi_firmware_get() takes refcount, we should release it with
rpi_firmware_put(), add missing rpi_firmware_put() in the error path.

Fixes: 2a001ca00ad5 ("drm/vc4: hdmi: Rework hdmi_enable_4kp60 detection code")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
---
 drivers/gpu/drm/vc4/vc4_hvs.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/vc4/vc4_hvs.c b/drivers/gpu/drm/vc4/vc4_hvs.c
index c4453a5ae163..816844ea60b1 100644
--- a/drivers/gpu/drm/vc4/vc4_hvs.c
+++ b/drivers/gpu/drm/vc4/vc4_hvs.c
@@ -809,6 +809,7 @@ static int vc4_hvs_bind(struct device *dev, struct device *master, void *data)
 		hvs->core_clk = devm_clk_get(&pdev->dev, NULL);
 		if (IS_ERR(hvs->core_clk)) {
 			dev_err(&pdev->dev, "Couldn't get core clock\n");
+			rpi_firmware_put(firmware);
 			return PTR_ERR(hvs->core_clk);
 		}
 
-- 
2.25.1


                 reply	other threads:[~2022-12-20 11:26 UTC|newest]

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