[PATCH v2] amdgpu: fixes error branch not return errno issue

[Bernard Zhao]

The "if(!encoder)" branch return the same value 0 of the success
branch, maybe return -EINVAL is more better.

Signed-off-by: Bernard Zhao <bernard at vivo.com>

---
Changes since V1:
* commit message improve
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c
index f355d9a..1f8c6b4 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c
@@ -474,12 +474,12 @@ static int amdgpu_connector_set_property(struct drm_connector *connector,
 		/* need to find digital encoder on connector */
 		encoder = amdgpu_connector_find_encoder(connector, DRM_MODE_ENCODER_TMDS);
 		if (!encoder)
-			return 0;
+			return -EINVAL;
 
 		amdgpu_encoder = to_amdgpu_encoder(encoder);
 
 		if (!amdgpu_encoder->enc_priv)
-			return 0;
+			return -EINVAL;
 
 		dig = amdgpu_encoder->enc_priv;
 		new_coherent_mode = val ? true : false;
@@ -494,7 +494,7 @@ static int amdgpu_connector_set_property(struct drm_connector *connector,
 		/* need to find digital encoder on connector */
 		encoder = amdgpu_connector_find_encoder(connector, DRM_MODE_ENCODER_TMDS);
 		if (!encoder)
-			return 0;
+			return -EINVAL;
 
 		amdgpu_encoder = to_amdgpu_encoder(encoder);
 
@@ -509,7 +509,7 @@ static int amdgpu_connector_set_property(struct drm_connector *connector,
 		/* need to find digital encoder on connector */
 		encoder = amdgpu_connector_find_encoder(connector, DRM_MODE_ENCODER_TMDS);
 		if (!encoder)
-			return 0;
+			return -EINVAL;
 
 		amdgpu_encoder = to_amdgpu_encoder(encoder);
 
@@ -523,7 +523,7 @@ static int amdgpu_connector_set_property(struct drm_connector *connector,
 		/* need to find digital encoder on connector */
 		encoder = amdgpu_connector_find_encoder(connector, DRM_MODE_ENCODER_TMDS);
 		if (!encoder)
-			return 0;
+			return -EINVAL;
 
 		amdgpu_encoder = to_amdgpu_encoder(encoder);
 
@@ -537,7 +537,7 @@ static int amdgpu_connector_set_property(struct drm_connector *connector,
 		/* need to find digital encoder on connector */
 		encoder = amdgpu_connector_find_encoder(connector, DRM_MODE_ENCODER_TMDS);
 		if (!encoder)
-			return 0;
+			return -EINVAL;
 
 		amdgpu_encoder = to_amdgpu_encoder(encoder);
 
@@ -551,7 +551,7 @@ static int amdgpu_connector_set_property(struct drm_connector *connector,
 		/* need to find digital encoder on connector */
 		encoder = amdgpu_connector_find_encoder(connector, DRM_MODE_ENCODER_TMDS);
 		if (!encoder)
-			return 0;
+			return -EINVAL;
 
 		amdgpu_encoder = to_amdgpu_encoder(encoder);
 
-- 
2.7.4