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drm/vc4: hdmi: Fix PM reference leak in vc4_hdmi_encoder_pre_crtc_co()
authorZou Wei <zou_wei@huawei.com>
Mon, 24 May 2021 07:20:54 +0000 (15:20 +0800)
committerMaxime Ripard <maxime@cerno.tech>
Tue, 25 May 2021 08:32:56 +0000 (10:32 +0200)
commit5e4322a8b266bc9f5ee7ea4895f661c01dbd7cb3
treee50be0fd2052802e78e337fd2a9814213c088fb6
parenta596fcd9cbc78110b150d41829be54e56f5aae7c
drm/vc4: hdmi: Fix PM reference leak in vc4_hdmi_encoder_pre_crtc_co()

pm_runtime_get_sync will increment pm usage counter even it failed.
Forgetting to putting operation will result in reference leak here.
Fix it by replacing it with pm_runtime_resume_and_get to keep usage
counter balanced.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zou Wei <zou_wei@huawei.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/1621840854-105978-1-git-send-email-zou_wei@huawei.com
drivers/gpu/drm/vc4/vc4_hdmi.c