Use remove_proc_subtree() rather than remove_proc_entry() to remove a minor-specific drm proc directory and all its children.
Things could theoretically be improved by storing the drm_minor pointer in the minor-specific dir proc_dir_entry struct data and then scrapping the list of proc files - but that's shared with the debugfs interface where you can't do that, so I don't see an easy way of doing it.
Signed-off-by: David Howells dhowells@redhat.com cc: dri-devel@lists.freedesktop.org ---
drivers/gpu/drm/drm_proc.c | 22 +++++++--------------- 1 file changed, 7 insertions(+), 15 deletions(-)
diff --git a/drivers/gpu/drm/drm_proc.c b/drivers/gpu/drm/drm_proc.c index 0646a46..d7f2324 100644 --- a/drivers/gpu/drm/drm_proc.c +++ b/drivers/gpu/drm/drm_proc.c @@ -95,7 +95,7 @@ static int drm_proc_create_files(const struct drm_info_list *files, int count, struct drm_device *dev = minor->dev; struct proc_dir_entry *ent; struct drm_info_node *tmp; - int i, ret; + int i;
for (i = 0; i < count; i++) { u32 features = files[i].driver_features; @@ -105,10 +105,9 @@ static int drm_proc_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; - } + if (!tmp) + return -1; + tmp->minor = minor; tmp->info_ent = &files[i]; list_add(&tmp->list, &minor->proc_nodes.list); @@ -120,16 +119,10 @@ static int drm_proc_create_files(const struct drm_info_list *files, int count, minor->index, files[i].name); list_del(&tmp->list); kfree(tmp); - ret = -1; - goto fail; + return -1; } } return 0; - -fail: - for (i = 0; i < count; i++) - remove_proc_entry(drm_proc_list[i].name, minor->proc_root); - return ret; }
/** @@ -160,7 +153,7 @@ int drm_proc_init(struct drm_minor *minor, struct proc_dir_entry *root) ret = drm_proc_create_files(drm_proc_list, DRM_PROC_ENTRIES, minor->proc_root, minor); if (ret) { - remove_proc_entry(name, root); + remove_proc_subtree(name, root); minor->proc_root = NULL; DRM_ERROR("Failed to create core drm proc files\n"); return ret; @@ -210,8 +203,7 @@ int drm_proc_cleanup(struct drm_minor *minor, struct proc_dir_entry *root) drm_proc_remove_files(drm_proc_list, DRM_PROC_ENTRIES, minor);
sprintf(name, "%d", minor->index); - remove_proc_entry(name, root); - + remove_proc_subtree(name, root); return 0; }