From: Navid Emamdoost <navid.emamdoost@xxxxxxxxx>
[ Upstream commit e008fa6fb41544b63973a529b704ef342f47cc65 ]
in amdgpu_display_crtc_set_config, the call to pm_runtime_get_sync
increments the counter even in case of failure, leading to incorrect
ref count. In case of failure, decrement the ref count before returning.
Signed-off-by: Navid Emamdoost <navid.emamdoost@xxxxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_display.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
index 6ad243293a78b..df24494299791 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
@@ -269,7 +269,7 @@ int amdgpu_crtc_set_config(struct drm_mode_set *set,
ret = pm_runtime_get_sync(dev->dev);
if (ret < 0)
- return ret;
+ goto out;
ret = drm_crtc_helper_set_config(set, ctx);
@@ -284,7 +284,7 @@ int amdgpu_crtc_set_config(struct drm_mode_set *set,
take the current one */
if (active && !adev->have_disp_power_ref) {
adev->have_disp_power_ref = true;
- return ret;
+ goto out;
}
/* if we have no active crtcs, then drop the power ref
we got before */
@@ -293,6 +293,7 @@ int amdgpu_crtc_set_config(struct drm_mode_set *set,
adev->have_disp_power_ref = false;
}
+out:
/* drop the power reference we got coming in here */
pm_runtime_put_autosuspend(dev->dev);
return ret;
--
2.25.1
