[PATCH 5.8 068/118] drm/mediatek: Add missing put_device() call in mtk_ddp_comp_init()

Greg Kroah-Hartman
2020-09-21T16:55:49Z

From: Yu Kuai <yukuai3@huawei.com>

[ Upstream commit d494c257271153633a05c11e6dec85ddfc7700ee ]

if of_find_device_by_node() succeed, mtk_ddp_comp_init() doesn't have
a corresponding put_device(). Thus add put_device() to fix the exception
handling for this function implementation.

Fixes: d0afe37f5209 ("drm/mediatek: support CMDQ interface in ddp component")
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
index 57c88de9a3293..526648885b97e 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
@@ -496,6 +496,7 @@ int mtk_ddp_comp_init(struct device *dev, struct device_node *node,
#if IS_REACHABLE(CONFIG_MTK_CMDQ)
if (of_address_to_resource(node, 0, &res) != 0) {
dev_err(dev, "Missing reg in %s node\n", node->full_name);
+ put_device(&larb_pdev->dev);
return -EINVAL;
}
comp->regs_pa = res.start;
--
2.25.1