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drm/msm/dsi: Use pm_runtime_resume_and_get to prevent refcnt leaks 

[ Upstream commit 3d07a411b4faaf2b498760ccf12888f8de529de0 ]

This helper has been introduced to avoid programmer errors (missing
_put calls leading to dangling refcnt) when using pm_runtime_get, use it.

While at it, start checking the return value.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Fixes: 5c82902844 ("drm/msm/dsi: Split PHY drivers to separate files")
Patchwork: https://patchwork.freedesktop.org/patch/543350/
Link: https://lore.kernel.org/r/20230620-topic-dsiphy_rpm-v2-1-a11a751f34f0@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Konrad Dybcio 2023-06-20 13:43:20 +02:00 committed by Greg Kroah-Hartman
parent b234ecad20
commit 19b01c6c19
1 changed files with 3 additions and 1 deletions
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4
drivers/gpu/drm/msm/dsi/phy/dsi_phy.c
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@ -512,7 +512,9 @@ static int dsi_phy_enable_resource(struct msm_dsi_phy *phy)
struct device *dev = &phy->pdev->dev;
int ret;
pm_runtime_get_sync(dev);
ret = pm_runtime_resume_and_get(dev);
if (ret)
return ret;
ret = clk_prepare_enable(phy->ahb_clk);
if (ret) {