From: Miaoqian Lin linmq006@gmail.com
[ Upstream commit 45dac1352b55b1d8cb17f218936b2bc2bc1fb4ee ]
of_icc_get() alloc resources for path1, we should release it when not need anymore. Early return when IS_ERR_OR_NULL(path0) may leak path1. Defer getting path1 to fix this.
Fixes: b9364eed9232 ("drm/msm/dpu: Move min BW request and full BW disable back to mdss") Signed-off-by: Miaoqian Lin linmq006@gmail.com Reviewed-by: Douglas Anderson dianders@chromium.org Reviewed-by: Abhinav Kumar quic_abhinavk@quicinc.com Patchwork: https://patchwork.freedesktop.org/patch/514264/ Link: https://lore.kernel.org/r/20221207065922.2086368-1-linmq006@gmail.com Signed-off-by: Abhinav Kumar quic_abhinavk@quicinc.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/msm/msm_mdss.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/msm/msm_mdss.c b/drivers/gpu/drm/msm/msm_mdss.c index e13c5c12b775..3b8d6991b04e 100644 --- a/drivers/gpu/drm/msm/msm_mdss.c +++ b/drivers/gpu/drm/msm/msm_mdss.c @@ -46,15 +46,17 @@ struct msm_mdss { static int msm_mdss_parse_data_bus_icc_path(struct device *dev, struct msm_mdss *msm_mdss) { - struct icc_path *path0 = of_icc_get(dev, "mdp0-mem"); - struct icc_path *path1 = of_icc_get(dev, "mdp1-mem"); + struct icc_path *path0; + struct icc_path *path1;
+ path0 = of_icc_get(dev, "mdp0-mem"); if (IS_ERR_OR_NULL(path0)) return PTR_ERR_OR_ZERO(path0);
msm_mdss->path[0] = path0; msm_mdss->num_paths = 1;
+ path1 = of_icc_get(dev, "mdp1-mem"); if (!IS_ERR_OR_NULL(path1)) { msm_mdss->path[1] = path1; msm_mdss->num_paths++;