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drivers: gpu: amd: Initialize amdgpu_dm_backlight_caps object to 0 in amdgpu_dm_update_backlight_caps

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In `amdgpu_dm_update_backlight_caps()`, there is a local
`amdgpu_dm_backlight_caps` object that is filled in by
`amdgpu_acpi_get_backlight_caps()`. However, this object is
uninitialized before the call and hence the subsequent check for
aux_support can fail since it is not initialized by
`amdgpu_acpi_get_backlight_caps()` as well. This change initializes
this local `amdgpu_dm_backlight_caps` object to 0.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Furquan Shaikh <furquan@google.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Furquan Shaikh
2020-08-20 00:52:41 -07:00
committed by Alex Deucher
parent 4c319bbebe
commit ba1bab14b6
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
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@@ -2927,6 +2927,8 @@ static void amdgpu_dm_update_backlight_caps(struct amdgpu_display_manager *dm)
#if defined(CONFIG_ACPI)
struct amdgpu_dm_backlight_caps caps;
memset(&caps, 0, sizeof(caps));
if (dm->backlight_caps.caps_valid)
return;