From: Jordan Crouse Date: Tue, 21 Nov 2017 12:40:51 -0700 Subject: drm/msm/adreno: Call dev_pm_opp_put() Git-commit: aa2a2ab7b714f7b2de3849ca3379818ae15f476b Patch-mainline: v4.16-rc1 References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166 We need to call dev_pm_opp_put() to put back the reference for the OPP struct after calling the various dev_pm_opp_get_* functions. Signed-off-by: Jordan Crouse Signed-off-by: Rob Clark Acked-by: Petr Tesarik --- drivers/gpu/drm/msm/adreno/a5xx_power.c | 8 +++++++- drivers/gpu/drm/msm/adreno/adreno_device.c | 4 +++- 2 files changed, 10 insertions(+), 2 deletions(-) --- a/drivers/gpu/drm/msm/adreno/a5xx_power.c +++ b/drivers/gpu/drm/msm/adreno/a5xx_power.c @@ -103,10 +103,16 @@ static inline uint32_t _get_mvolts(struc struct msm_drm_private *priv = dev->dev_private; struct platform_device *pdev = priv->gpu_pdev; struct dev_pm_opp *opp; + u32 ret = 0; opp = dev_pm_opp_find_freq_exact(&pdev->dev, freq, true); - return (!IS_ERR(opp)) ? dev_pm_opp_get_voltage(opp) / 1000 : 0; + if (!IS_ERR(opp)) { + ret = dev_pm_opp_get_voltage(opp) / 1000; + dev_pm_opp_put(opp); + } + + return ret; } /* Setup thermal limit management */ --- a/drivers/gpu/drm/msm/adreno/adreno_device.c +++ b/drivers/gpu/drm/msm/adreno/adreno_device.c @@ -247,8 +247,10 @@ static int adreno_get_pwrlevels(struct d /* Find the fastest defined rate */ opp = dev_pm_opp_find_freq_floor(dev, &freq); - if (!IS_ERR(opp)) + if (!IS_ERR(opp)) { config->fast_rate = dev_pm_opp_get_freq(opp); + dev_pm_opp_put(opp); + } if (!config->fast_rate) { DRM_DEV_INFO(dev,