Qinglang Miao de4248b744 drm/lima: fix reference leak in lima_pm_busy ...

pm_runtime_get_sync will increment pm usage counter even it
failed. Forgetting to putting operation will result in a
reference leak here.

A new function pm_runtime_resume_and_get is introduced in
[0] to keep usage counter balanced. So We fix the reference
leak by replacing it with new function.

[0] commit dd8088d5a8 ("PM: runtime: Add  pm_runtime_resume_and_get to deal with usage counter")

Fixes: 50de2e9ebb ("drm/lima: enable runtime pm")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com>
Signed-off-by: Qiang Yu <yuq825@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201127094438.121003-1-miaoqinglang@huawei.com
(cherry picked from commit de499781c9)
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>

2021-02-09 17:14:11 +01:00

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