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Subject[PATCH 5.15 346/667] drm/msm/a6xx: Fix refcount leak in a6xx_gpu_init
Date
From: Miaoqian Lin <linmq006@gmail.com>

[ Upstream commit c56de483093d7ad0782327f95dda7da97bc4c315 ]

of_parse_phandle() returns a node pointer with refcount
incremented, we should use of_node_put() on it when not need anymore.

a6xx_gmu_init() passes the node to of_find_device_by_node()
and of_dma_configure(), of_find_device_by_node() will takes its
reference, of_dma_configure() doesn't need the node after usage.

Add missing of_node_put() to avoid refcount leak.

Fixes: 4b565ca5a2cb ("drm/msm: Add A6XX device support")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Reviewed-by: Akhil P Oommen <quic_akhilpo@quicinc.com>
Link: https://lore.kernel.org/r/20220512121955.56937-1-linmq006@gmail.com
Signed-off-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
index 9b41e2f82fc2..c0dec5b919d4 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
@@ -1872,6 +1872,7 @@ struct msm_gpu *a6xx_gpu_init(struct drm_device *dev)
BUG_ON(!node);

ret = a6xx_gmu_init(a6xx_gpu, node);
+ of_node_put(node);
if (ret) {
a6xx_destroy(&(a6xx_gpu->base.base));
return ERR_PTR(ret);
--
2.35.1


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