Merge branch 'work.namei' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

[platform/kernel/linux-starfive.git] / kernel / usermode_driver.c

diff --git a/kernel/usermode_driver.c b/kernel/usermode_driver.c
index 78353cb..9dae1f6 100644 (file)
--- a/kernel/usermode_driver.c
+++ b/kernel/usermode_driver.c
@@ -139,13 +139,22 @@ static void umd_cleanup(struct subprocess_info *info)
        struct umd_info *umd_info = info->data;
 
        /* cleanup if umh_setup() was successful but exec failed */
-       if (info->retval) {
-               fput(umd_info->pipe_to_umh);
-               fput(umd_info->pipe_from_umh);
-               put_pid(umd_info->tgid);
-               umd_info->tgid = NULL;
-       }
+       if (info->retval)
+               umd_cleanup_helper(umd_info);
+}
+
+/**
+ * umd_cleanup_helper - release the resources which were allocated in umd_setup
+ * @info: information about usermode driver
+ */
+void umd_cleanup_helper(struct umd_info *info)
+{
+       fput(info->pipe_to_umh);
+       fput(info->pipe_from_umh);
+       put_pid(info->tgid);
+       info->tgid = NULL;
 }
+EXPORT_SYMBOL_GPL(umd_cleanup_helper);
 
 /**
  * fork_usermode_driver - fork a usermode driver