DebugFS : file/directory creation error handling

Fix error handling of file and directory creation in DebugFS.

The error path should release the file system because no _remove will be called
for this erroneous creation.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 3 insertions, 1 deletions

diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c
index 05d1a9c4fb76..d6c5fb53c746 100644
--- a/fs/debugfs/inode.c
+++ b/fs/debugfs/inode.c
@@ -206,13 +206,15 @@ struct dentry *debugfs_create_file(const char *name, mode_t mode,
 
         pr_debug("debugfs: creating file '%s'\n",name);
 
-        error = simple_pin_fs(&debug_fs_type, &debugfs_mount, &debugfs_mount_count);
+        error = simple_pin_fs(&debug_fs_type, &debugfs_mount,
+                              &debugfs_mount_count);
         if (error)
                 goto exit;
 
         error = debugfs_create_by_name(name, mode, parent, &dentry);
         if (error) {
                 dentry = NULL;
+                simple_release_fs(&debugfs_mount, &debugfs_mount_count);
                 goto exit;
         }