1 files changed, 4 insertions, 0 deletions

diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index 4978621511bf..2b88c93af227 100644
--- a/fs/fat/inode.c
+++ b/fs/fat/inode.c
@@ -451,6 +451,8 @@ static void fat_put_super(struct super_block *sb)
 {
         struct msdos_sb_info *sbi = MSDOS_SB(sb);
 
+        lock_kernel();
+
         if (sb->s_dirt)
                 fat_write_super(sb);
 
@@ -470,6 +472,8 @@ static void fat_put_super(struct super_block *sb)
 
         sb->s_fs_info = NULL;
         kfree(sbi);
+
+        unlock_kernel();
 }
 
 static struct kmem_cache *fat_inode_cachep;