diff options
Diffstat (limited to 'drivers/gpu/drm/drm_debugfs.c')
| -rw-r--r-- | drivers/gpu/drm/drm_debugfs.c | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/drivers/gpu/drm/drm_debugfs.c b/drivers/gpu/drm/drm_debugfs.c index 9d2668a50872..1c7a1c0d3edd 100644 --- a/drivers/gpu/drm/drm_debugfs.c +++ b/drivers/gpu/drm/drm_debugfs.c @@ -33,6 +33,7 @@ #include <linux/debugfs.h> #include <linux/seq_file.h> #include <linux/slab.h> +#include <linux/export.h> #include "drmP.h" #if defined(CONFIG_DEBUG_FS) @@ -107,11 +108,8 @@ int drm_debugfs_create_files(struct drm_info_list *files, int count, ent = debugfs_create_file(files[i].name, S_IFREG | S_IRUGO, root, tmp, &drm_debugfs_fops); if (!ent) { - char name[64]; - strncpy(name, root->d_name.name, - min(root->d_name.len, 64U)); DRM_ERROR("Cannot create /sys/kernel/debug/dri/%s/%s\n", - name, files[i].name); + root->d_name.name, files[i].name); kfree(tmp); ret = -1; goto fail; @@ -120,7 +118,10 @@ int drm_debugfs_create_files(struct drm_info_list *files, int count, tmp->minor = minor; tmp->dent = ent; tmp->info_ent = &files[i]; - list_add(&(tmp->list), &(minor->debugfs_nodes.list)); + + mutex_lock(&minor->debugfs_lock); + list_add(&tmp->list, &minor->debugfs_list); + mutex_unlock(&minor->debugfs_lock); } return 0; @@ -148,7 +149,8 @@ int drm_debugfs_init(struct drm_minor *minor, int minor_id, char name[64]; int ret; - INIT_LIST_HEAD(&minor->debugfs_nodes.list); + INIT_LIST_HEAD(&minor->debugfs_list); + mutex_init(&minor->debugfs_lock); sprintf(name, "%d", minor_id); minor->debugfs_root = debugfs_create_dir(name, root); if (!minor->debugfs_root) { @@ -194,8 +196,9 @@ int drm_debugfs_remove_files(struct drm_info_list *files, int count, struct drm_info_node *tmp; int i; + mutex_lock(&minor->debugfs_lock); for (i = 0; i < count; i++) { - list_for_each_safe(pos, q, &minor->debugfs_nodes.list) { + list_for_each_safe(pos, q, &minor->debugfs_list) { tmp = list_entry(pos, struct drm_info_node, list); if (tmp->info_ent == &files[i]) { debugfs_remove(tmp->dent); @@ -204,6 +207,7 @@ int drm_debugfs_remove_files(struct drm_info_list *files, int count, } } } + mutex_unlock(&minor->debugfs_lock); return 0; } EXPORT_SYMBOL(drm_debugfs_remove_files); |