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From 40d4c2e9b52b426bbc9cf13cccffaf7c4c89f907 Mon Sep 17 00:00:00 2001
From: Wen Yang <wen.yang99@zte.com.cn>
Date: Wed, 5 Dec 2018 15:43:19 +0800
Subject: [PATCH 0908/2940] drm/amdgpu/acpi: NULL check before some freeing
 functions is not needed

kfree(NULL) is safe, so removes NULL check before freeing the mem.
This patch also fix the ifnullfree.cocci warnings.

Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Wen Yang <wen.yang99@zte.com.cn>
CC: Alex Deucher <alexander.deucher@amd.com>
CC: christian.koenig@amd.com
CC: "David (ChunMing) Zhou" <David1.Zhou@amd.com>
CC: David Airlie <airlied@linux.ie> (maintainer:DRM DRIVERS)
CC: Lyude Paul <lyude@redhat.com>
CC: Rex Zhu <Rex.Zhu@amd.com>
CC: Jim Qu <Jim.Qu@amd.com>
CC: amd-gfx@lists.freedesktop.org
CC: dri-devel@lists.freedesktop.org
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c
index 47db65926d71..4376b17ca594 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c
@@ -886,6 +886,5 @@ void amdgpu_acpi_get_backlight_caps(struct amdgpu_device *adev,
 void amdgpu_acpi_fini(struct amdgpu_device *adev)
 {
 	unregister_acpi_notifier(&adev->acpi_nb);
-	if (adev->atif)
-		kfree(adev->atif);
+	kfree(adev->atif);
 }
-- 
2.17.1