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From 8e2b561be21abaefbfb9132137caad9dc3dba36e Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Mon, 6 Nov 2017 14:43:41 +0300
Subject: [PATCH 2684/4131] drm/amd/display: checking for NULL instead of
IS_ERR()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
backlight_device_register() never returns NULL, it returns error
pointers on error so the check here is wrong.
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
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 7098bb0..0f36106 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -1348,7 +1348,7 @@ amdgpu_dm_register_backlight_device(struct amdgpu_display_manager *dm)
&amdgpu_dm_backlight_ops);
#endif
- if (NULL == dm->backlight_dev)
+ if (IS_ERR(dm->backlight_dev))
DRM_ERROR("DM: Backlight registration failed!\n");
else
DRM_DEBUG_DRIVER("DM: Registered Backlight device: %s\n", bl_name);
--
2.7.4
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