lkml.org 
[lkml]   [2020]   [Feb]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 01/21] drm/debugfs: remove checks for return value of drm_debugfs functions.
Date
Since 987d65d01356 (drm: debugfs: make drm_debugfs_create_files() never
fail), there is no need to check the return value of
drm_debugfs_create_files(). Therefore, remove remove unnecessary checks
and error handling statement blocks for its return value.

These changes also enable changing drm_debugfs_create_files() to return
void.

Signed-off-by: Wambui Karuga <wambui.karugax@gmail.com>
---
drivers/gpu/drm/drm_debugfs.c | 49 ++++++++---------------------------
include/drm/drm_debugfs.h | 6 ++---
2 files changed, 14 insertions(+), 41 deletions(-)

diff --git a/drivers/gpu/drm/drm_debugfs.c b/drivers/gpu/drm/drm_debugfs.c
index 4e673d318503..d77d2bdcfb2d 100644
--- a/drivers/gpu/drm/drm_debugfs.c
+++ b/drivers/gpu/drm/drm_debugfs.c
@@ -172,8 +172,8 @@ static const struct file_operations drm_debugfs_fops = {
* &struct drm_info_list in the given root directory. These files will be removed
* automatically on drm_debugfs_cleanup().
*/
-int drm_debugfs_create_files(const struct drm_info_list *files, int count,
- struct dentry *root, struct drm_minor *minor)
+void drm_debugfs_create_files(const struct drm_info_list *files, int count,
+ struct dentry *root, struct drm_minor *minor)
{
struct drm_device *dev = minor->dev;
struct drm_info_node *tmp;
@@ -199,7 +199,6 @@ int drm_debugfs_create_files(const struct drm_info_list *files, int count,
list_add(&tmp->list, &minor->debugfs_list);
mutex_unlock(&minor->debugfs_lock);
}
- return 0;
}
EXPORT_SYMBOL(drm_debugfs_create_files);

@@ -208,56 +207,30 @@ int drm_debugfs_init(struct drm_minor *minor, int minor_id,
{
struct drm_device *dev = minor->dev;
char name[64];
- int ret;

INIT_LIST_HEAD(&minor->debugfs_list);
mutex_init(&minor->debugfs_lock);
sprintf(name, "%d", minor_id);
minor->debugfs_root = debugfs_create_dir(name, root);

- ret = drm_debugfs_create_files(drm_debugfs_list, DRM_DEBUGFS_ENTRIES,
- minor->debugfs_root, minor);
- if (ret) {
- debugfs_remove(minor->debugfs_root);
- minor->debugfs_root = NULL;
- DRM_ERROR("Failed to create core drm debugfs files\n");
- return ret;
- }
+ drm_debugfs_create_files(drm_debugfs_list, DRM_DEBUGFS_ENTRIES,
+ minor->debugfs_root, minor);

- if (drm_drv_uses_atomic_modeset(dev)) {
- ret = drm_atomic_debugfs_init(minor);
- if (ret) {
- DRM_ERROR("Failed to create atomic debugfs files\n");
- return ret;
- }
- }
+ if (drm_drv_uses_atomic_modeset(dev))
+ drm_atomic_debugfs_init(minor);

if (drm_core_check_feature(dev, DRIVER_MODESET)) {
- ret = drm_framebuffer_debugfs_init(minor);
- if (ret) {
- DRM_ERROR("Failed to create framebuffer debugfs file\n");
- return ret;
- }
+ drm_framebuffer_debugfs_init(minor);

- ret = drm_client_debugfs_init(minor);
- if (ret) {
- DRM_ERROR("Failed to create client debugfs file\n");
- return ret;
- }
+ drm_client_debugfs_init(minor);
}

- if (dev->driver->debugfs_init) {
- ret = dev->driver->debugfs_init(minor);
- if (ret) {
- DRM_ERROR("DRM: Driver failed to initialize "
- "/sys/kernel/debug/dri.\n");
- return ret;
- }
- }
+ if (dev->driver->debugfs_init)
+ dev->driver->debugfs_init(minor);
+
return 0;
}

-
int drm_debugfs_remove_files(const struct drm_info_list *files, int count,
struct drm_minor *minor)
{
diff --git a/include/drm/drm_debugfs.h b/include/drm/drm_debugfs.h
index 7501e323d383..4d028cc1fd37 100644
--- a/include/drm/drm_debugfs.h
+++ b/include/drm/drm_debugfs.h
@@ -80,9 +80,9 @@ struct drm_info_node {
};

#if defined(CONFIG_DEBUG_FS)
-int drm_debugfs_create_files(const struct drm_info_list *files,
- int count, struct dentry *root,
- struct drm_minor *minor);
+void drm_debugfs_create_files(const struct drm_info_list *files,
+ int count, struct dentry *root,
+ struct drm_minor *minor);
int drm_debugfs_remove_files(const struct drm_info_list *files,
int count, struct drm_minor *minor);
#else
--
2.25.0
\
 
 \ /
  Last update: 2020-02-27 13:03    [W:0.184 / U:0.664 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site