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)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 19 Jul 2021 07:44:41 +0000 (09:44 +0200)
commitf06ea024c176fe44ec7f5746bcddcfab07e21758
tree422aaa6ba2959096340093f0d911867580639256
parent48c96d5bacc0fb87e6d516564ec3cee66f274c53
drm/vc4: hdmi: Fix PM reference leak in vc4_hdmi_encoder_pre_crtc_co()

[ Upstream commit 5e4322a8b266bc9f5ee7ea4895f661c01dbd7cb3 ]

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
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/gpu/drm/vc4/vc4_hdmi.c