5.15-stable review patch. If anyone has any objections, please let me know.
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From: Konrad Dybcio konrad.dybcio@linaro.org
[ 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: 5c8290284402 ("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... Signed-off-by: Dmitry Baryshkov dmitry.baryshkov@linaro.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/msm/dsi/phy/dsi_phy.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c index 6a917fe69a83..4b5b0a4b051b 100644 --- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c +++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c @@ -588,7 +588,9 @@ 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) {