[PATCH] 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.

Signed-off-by: Furquan Shaikh <furquan@xxxxxxxxxx>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index e4b33c67b634..725d8af634ee 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -2853,7 +2853,7 @@ static int amdgpu_dm_mode_config_init(struct amdgpu_device *adev)
 static void amdgpu_dm_update_backlight_caps(struct amdgpu_display_manager *dm)
 {
 #if defined(CONFIG_ACPI)
-	struct amdgpu_dm_backlight_caps caps;
+	struct amdgpu_dm_backlight_caps caps = { 0 };
 
 	if (dm->backlight_caps.caps_valid)
 		return;
-- 
2.28.0.297.g1956fa8f8d-goog

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