1 files changed, 4 insertions, 0 deletions

diff --git a/fs/exofs/super.c b/fs/exofs/super.c
index 3cdb761db8ad..cd1f8b18a218 100644
--- a/fs/exofs/super.c
+++ b/fs/exofs/super.c
@@ -258,6 +258,8 @@ static void exofs_put_super(struct super_block *sb)
         int num_pend;
         struct exofs_sb_info *sbi = sb->s_fs_info;
 
+        lock_kernel();
+
         if (sb->s_dirt)
                 exofs_write_super(sb);
 
@@ -274,6 +276,8 @@ static void exofs_put_super(struct super_block *sb)
         osduld_put_device(sbi->s_dev);
         kfree(sb->s_fs_info);
         sb->s_fs_info = NULL;
+
+        unlock_kernel();
 }
 
 /*