android: Remove error checking for debugfs_create_dir()

It is expected that most callers should _ignore_ the errors
return by debugfs_create_dir() in binder_init().
Signed-off-by: Wang Ming <machel@vivo.com>
Link: https://lore.kernel.org/r/20230713080649.1893-1-machel@vivo.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/android/binder.c

@@ -6557,6 +6557,7 @@ static int __init binder_init(void)
 	struct binder_device *device;
 	struct hlist_node *tmp;
 	char *device_names = NULL;
+	const struct binder_debugfs_entry *db_entry;
 
 	ret = binder_alloc_shrinker_init();
 	if (ret)
@@ -6566,19 +6567,16 @@ static int __init binder_init(void)
 	atomic_set(&binder_transaction_log_failed.cur, ~0U);
 
 	binder_debugfs_dir_entry_root = debugfs_create_dir("binder", NULL);
-	if (binder_debugfs_dir_entry_root) {
-		const struct binder_debugfs_entry *db_entry;
 
-		binder_for_each_debugfs_entry(db_entry)
-			debugfs_create_file(db_entry->name,
-					    db_entry->mode,
-					    binder_debugfs_dir_entry_root,
-					    db_entry->data,
-					    db_entry->fops);
+	binder_for_each_debugfs_entry(db_entry)
+		debugfs_create_file(db_entry->name,
+					db_entry->mode,
+					binder_debugfs_dir_entry_root,
+					db_entry->data,
+					db_entry->fops);
 
-		binder_debugfs_dir_entry_proc = debugfs_create_dir("proc",
-						 binder_debugfs_dir_entry_root);
-	}
+	binder_debugfs_dir_entry_proc = debugfs_create_dir("proc",
+						binder_debugfs_dir_entry_root);
 
 	if (!IS_ENABLED(CONFIG_ANDROID_BINDERFS) &&
 	    strcmp(binder_devices_param, "") != 0) {