* [PATCH] drm/rockchip: dsi: Fix second reference leak in dw_mipi_dsi_rockchip_host_attach()
@ 2026-09-16 18:13 Wentao Liang
0 siblings, 0 replies; only message in thread
From: Wentao Liang @ 2026-09-16 18:13 UTC (permalink / raw)
To: airlied
Cc: andrzej.hajda, andy.yan, dri-devel, heiko, hjc, linux-arm-kernel,
linux-kernel, linux-rockchip, maarten.lankhorst, mripard, simona,
tzimmermann, Wentao Liang, stable
The reference to the dual-DSI partner device obtained through
dw_mipi_dsi_rockchip_find_second() is dropped on neither the success
path nor when adding the partner as a component fails. Release it on
both paths.
Fixes: cf6d100dd238 ("drm/rockchip: dsi: add dual mipi support")
Cc: stable@vger.kernel.org
Signed-off-by: Wentao Liang <vulab@iscas.ac.cn>
---
drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c b/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c
index 4ab29410b2c0..2c1f1c53ddda 100644
--- a/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c
+++ b/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c
@@ -1079,8 +1079,10 @@ static int dw_mipi_dsi_rockchip_host_attach(void *priv_data,
DRM_DEV_ERROR(second,
"Failed to register component: %d\n",
ret);
+ put_device(second);
goto out;
}
+ put_device(second);
}
return 0;
--
2.34.1
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