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path: root/drivers/gpu/drm/drm_debugfs.c
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Diffstat (limited to 'drivers/gpu/drm/drm_debugfs.c')
-rw-r--r--drivers/gpu/drm/drm_debugfs.c92
1 files changed, 26 insertions, 66 deletions
diff --git a/drivers/gpu/drm/drm_debugfs.c b/drivers/gpu/drm/drm_debugfs.c
index f8468eae0503..eab0f2687cd6 100644
--- a/drivers/gpu/drm/drm_debugfs.c
+++ b/drivers/gpu/drm/drm_debugfs.c
@@ -24,20 +24,23 @@
*/
#include <linux/debugfs.h>
+#include <linux/export.h>
#include <linux/seq_file.h>
#include <linux/slab.h>
-#include <linux/export.h>
+#include <linux/uaccess.h>
+#include <drm/drm_atomic.h>
+#include <drm/drm_auth.h>
#include <drm/drm_client.h>
#include <drm/drm_debugfs.h>
+#include <drm/drm_device.h>
+#include <drm/drm_drv.h>
#include <drm/drm_edid.h>
-#include <drm/drm_atomic.h>
-#include <drm/drm_auth.h>
+#include <drm/drm_file.h>
#include <drm/drm_gem.h>
-#include <drm/drmP.h>
-#include "drm_internal.h"
#include "drm_crtc_internal.h"
+#include "drm_internal.h"
#if defined(CONFIG_DEBUG_FS)
@@ -173,9 +176,8 @@ int 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 dentry *ent;
struct drm_info_node *tmp;
- int i, ret;
+ int i;
for (i = 0; i < count; i++) {
u32 features = files[i].driver_features;
@@ -185,22 +187,13 @@ int drm_debugfs_create_files(const struct drm_info_list *files, int count,
continue;
tmp = kmalloc(sizeof(struct drm_info_node), GFP_KERNEL);
- if (tmp == NULL) {
- ret = -1;
- goto fail;
- }
- ent = debugfs_create_file(files[i].name, S_IFREG | S_IRUGO,
- root, tmp, &drm_debugfs_fops);
- if (!ent) {
- DRM_ERROR("Cannot create /sys/kernel/debug/dri/%pd/%s\n",
- root, files[i].name);
- kfree(tmp);
- ret = -1;
- goto fail;
- }
+ if (tmp == NULL)
+ continue;
tmp->minor = minor;
- tmp->dent = ent;
+ tmp->dent = debugfs_create_file(files[i].name,
+ S_IFREG | S_IRUGO, root, tmp,
+ &drm_debugfs_fops);
tmp->info_ent = &files[i];
mutex_lock(&minor->debugfs_lock);
@@ -208,10 +201,6 @@ int drm_debugfs_create_files(const struct drm_info_list *files, int count,
mutex_unlock(&minor->debugfs_lock);
}
return 0;
-
-fail:
- drm_debugfs_remove_files(files, count, minor);
- return ret;
}
EXPORT_SYMBOL(drm_debugfs_create_files);
@@ -226,10 +215,6 @@ int drm_debugfs_init(struct drm_minor *minor, int minor_id,
mutex_init(&minor->debugfs_lock);
sprintf(name, "%d", minor_id);
minor->debugfs_root = debugfs_create_dir(name, root);
- if (!minor->debugfs_root) {
- DRM_ERROR("Cannot create /sys/kernel/debug/dri/%s\n", name);
- return -1;
- }
ret = drm_debugfs_create_files(drm_debugfs_list, DRM_DEBUGFS_ENTRIES,
minor->debugfs_root, minor);
@@ -310,17 +295,15 @@ static void drm_debugfs_remove_all_files(struct drm_minor *minor)
mutex_unlock(&minor->debugfs_lock);
}
-int drm_debugfs_cleanup(struct drm_minor *minor)
+void drm_debugfs_cleanup(struct drm_minor *minor)
{
if (!minor->debugfs_root)
- return 0;
+ return;
drm_debugfs_remove_all_files(minor);
debugfs_remove_recursive(minor->debugfs_root);
minor->debugfs_root = NULL;
-
- return 0;
}
static int connector_show(struct seq_file *m, void *data)
@@ -438,38 +421,24 @@ static const struct file_operations drm_connector_fops = {
.write = connector_write
};
-int drm_debugfs_connector_add(struct drm_connector *connector)
+void drm_debugfs_connector_add(struct drm_connector *connector)
{
struct drm_minor *minor = connector->dev->primary;
- struct dentry *root, *ent;
+ struct dentry *root;
if (!minor->debugfs_root)
- return -1;
+ return;
root = debugfs_create_dir(connector->name, minor->debugfs_root);
- if (!root)
- return -ENOMEM;
-
connector->debugfs_entry = root;
/* force */
- ent = debugfs_create_file("force", S_IRUGO | S_IWUSR, root, connector,
- &drm_connector_fops);
- if (!ent)
- goto error;
+ debugfs_create_file("force", S_IRUGO | S_IWUSR, root, connector,
+ &drm_connector_fops);
/* edid */
- ent = debugfs_create_file("edid_override", S_IRUGO | S_IWUSR, root,
- connector, &drm_edid_fops);
- if (!ent)
- goto error;
-
- return 0;
-
-error:
- debugfs_remove_recursive(connector->debugfs_entry);
- connector->debugfs_entry = NULL;
- return -ENOMEM;
+ debugfs_create_file("edid_override", S_IRUGO | S_IWUSR, root, connector,
+ &drm_edid_fops);
}
void drm_debugfs_connector_remove(struct drm_connector *connector)
@@ -482,7 +451,7 @@ void drm_debugfs_connector_remove(struct drm_connector *connector)
connector->debugfs_entry = NULL;
}
-int drm_debugfs_crtc_add(struct drm_crtc *crtc)
+void drm_debugfs_crtc_add(struct drm_crtc *crtc)
{
struct drm_minor *minor = crtc->dev->primary;
struct dentry *root;
@@ -490,23 +459,14 @@ int drm_debugfs_crtc_add(struct drm_crtc *crtc)
name = kasprintf(GFP_KERNEL, "crtc-%d", crtc->index);
if (!name)
- return -ENOMEM;
+ return;
root = debugfs_create_dir(name, minor->debugfs_root);
kfree(name);
- if (!root)
- return -ENOMEM;
crtc->debugfs_entry = root;
- if (drm_debugfs_crtc_crc_add(crtc))
- goto error;
-
- return 0;
-
-error:
- drm_debugfs_crtc_remove(crtc);
- return -ENOMEM;
+ drm_debugfs_crtc_crc_add(crtc);
}
void drm_debugfs_crtc_remove(struct drm_crtc *crtc)