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drm/amd: Propagate failures in dc_set_power_state()

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During the suspend process dc_set_power_state() will use kzalloc
to allocate memory, but this potentially fails with memory pressure.
If it fails, the suspend should be aborted.

Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2362
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Cc: Harry.Wentland@amd.com
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Mario Limonciello
2023-09-21 09:50:04 -05:00
committed by Alex Deucher
parent 41801c6b30
commit 7441ef0b3e
3 changed files with 14 additions and 9 deletions
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13
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
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@@ -2671,9 +2671,7 @@ static int dm_suspend(void *handle)
hpd_rx_irq_work_suspend(dm);
dc_set_power_state(dm->dc, DC_ACPI_CM_POWER_STATE_D3);
return 0;
return dc_set_power_state(dm->dc, DC_ACPI_CM_POWER_STATE_D3);
}
struct amdgpu_dm_connector *
@@ -2867,7 +2865,10 @@ static int dm_resume(void *handle)
if (r)
DRM_ERROR("DMUB interface failed to initialize: status=%d\n", r);
dc_set_power_state(dm->dc, DC_ACPI_CM_POWER_STATE_D0);
r = dc_set_power_state(dm->dc, DC_ACPI_CM_POWER_STATE_D0);
if (r)
return r;
dc_resume(dm->dc);
amdgpu_dm_irq_resume_early(adev);
@@ -2916,7 +2917,9 @@ static int dm_resume(void *handle)
}
/* power on hardware */
dc_set_power_state(dm->dc, DC_ACPI_CM_POWER_STATE_D0);
r = dc_set_power_state(dm->dc, DC_ACPI_CM_POWER_STATE_D0);
if (r)
return r;
/* program HPD filter */
dc_resume(dm->dc);