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drm/msm/mdp4: Fix refcount leak in mdp4_modeset_init_intf

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of_graph_get_remote_node() returns remote device node pointer with
refcount incremented, we should use of_node_put() on it
when not need anymore.
Add missing of_node_put() to avoid refcount leak.

Fixes: 86418f90a4 ("drm: convert drivers to use of_graph_get_remote_node")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/488473/
Link: https://lore.kernel.org/r/20220607110841.53889-1-linmq006@gmail.com
Signed-off-by: Rob Clark <robdclark@chromium.org>
This commit is contained in:
Miaoqian Lin 2022-06-07 15:08:38 +04:00 committed by Rob Clark
parent c8af219d18
commit b9cc459860
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c
View file

@ -216,6 +216,7 @@ static int mdp4_modeset_init_intf(struct mdp4_kms *mdp4_kms,
encoder = mdp4_lcdc_encoder_init(dev, panel_node);
if (IS_ERR(encoder)) {
DRM_DEV_ERROR(dev->dev, "failed to construct LCDC encoder\n");
of_node_put(panel_node);
return PTR_ERR(encoder);
}
@ -225,6 +226,7 @@ static int mdp4_modeset_init_intf(struct mdp4_kms *mdp4_kms,
connector = mdp4_lvds_connector_init(dev, panel_node, encoder);
if (IS_ERR(connector)) {
DRM_DEV_ERROR(dev->dev, "failed to initialize LVDS connector\n");
of_node_put(panel_node);
return PTR_ERR(connector);
}