lkml.org 
[lkml]   [2019]   [Mar]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[PATCH V2] drm/vkms: Remove useless call to drm_connector_register/unregister()
The function vkms_output_init() is invoked during the module
initialization, and it handles the creation/configuration of the vkms
essential elements (e.g., connectors, encoder, etc). Among the
initializations, this function tries to initialize a connector and
register it by calling drm_connector_register(). However, inside the
drm_connector_register(), at the beginning of this function there is the
following validation:

if (!connector->dev->registered)
return 0;

In this sense, invoke drm_connector_register() after initializing the
connector has no effect because the register field is false. The
connector register happens when drm_dev_register() is invoked; the same
issue exists with drm_connector_unregister(). Therefore, this commit
removes the unnecessary call to drm_connector_register() and
drm_connector_unregister().

Changes since v2:
* Remove unnecessary call to drm_connector_unregister()
* Remove unused label

Signed-off-by: Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com>
Reviewed-by: Daniel Vetter <daniel@ffwll.ch>
---
drivers/gpu/drm/vkms/vkms_output.c | 10 ----------
1 file changed, 10 deletions(-)

diff --git a/drivers/gpu/drm/vkms/vkms_output.c b/drivers/gpu/drm/vkms/vkms_output.c
index 3b162b25312e..56fb5c2a2315 100644
--- a/drivers/gpu/drm/vkms/vkms_output.c
+++ b/drivers/gpu/drm/vkms/vkms_output.c
@@ -6,7 +6,6 @@

static void vkms_connector_destroy(struct drm_connector *connector)
{
- drm_connector_unregister(connector);
drm_connector_cleanup(connector);
}

@@ -71,12 +70,6 @@ int vkms_output_init(struct vkms_device *vkmsdev)

drm_connector_helper_add(connector, &vkms_conn_helper_funcs);

- ret = drm_connector_register(connector);
- if (ret) {
- DRM_ERROR("Failed to register connector\n");
- goto err_connector_register;
- }
-
ret = drm_encoder_init(dev, encoder, &vkms_encoder_funcs,
DRM_MODE_ENCODER_VIRTUAL, NULL);
if (ret) {
@@ -99,9 +92,6 @@ int vkms_output_init(struct vkms_device *vkmsdev)
drm_encoder_cleanup(encoder);

err_encoder:
- drm_connector_unregister(connector);
-
-err_connector_register:
drm_connector_cleanup(connector);

err_connector:
--
2.21.0[unhandled content-type:application/pgp-signature]
\
 
 \ /
  Last update: 2019-03-15 17:12    [W:0.023 / U:1.284 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site