1 files changed, 12 insertions, 0 deletions

diff --git a/fs/hpfs/super.c b/fs/hpfs/super.c
index fc77965be841..f2feaa06bf26 100644
--- a/fs/hpfs/super.c
+++ b/fs/hpfs/super.c
@@ -13,6 +13,7 @@
 #include <linux/statfs.h>
 #include <linux/magic.h>
 #include <linux/sched.h>
+#include <linux/smp_lock.h>
 
 /* Mark the filesystem dirty, so that chkdsk checks it when os/2 booted */
 
@@ -99,11 +100,16 @@ int hpfs_stop_cycles(struct super_block *s, int key, int *c1, int *c2,
 static void hpfs_put_super(struct super_block *s)
 {
         struct hpfs_sb_info *sbi = hpfs_sb(s);
+
+        lock_kernel();
+
         kfree(sbi->sb_cp_table);
         kfree(sbi->sb_bmp_dir);
         unmark_dirty(s);
         s->s_fs_info = NULL;
         kfree(sbi);
+
+        unlock_kernel();
 }
 
 unsigned hpfs_count_one_bitmap(struct super_block *s, secno secno)
@@ -393,6 +399,8 @@ static int hpfs_remount_fs(struct super_block *s, int *flags, char *data)
         
         *flags |= MS_NOATIME;
         
+        lock_kernel();
+        lock_super(s);
         uid = sbi->sb_uid; gid = sbi->sb_gid;
         umask = 0777 & ~sbi->sb_mode;
         lowercase = sbi->sb_lowercase; conv = sbi->sb_conv;
@@ -425,9 +433,13 @@ static int hpfs_remount_fs(struct super_block *s, int *flags, char *data)
 
         replace_mount_options(s, new_opts);
 
+        unlock_super(s);
+        unlock_kernel();
         return 0;
 
 out_err:
+        unlock_super(s);
+        unlock_kernel();
         kfree(new_opts);
         return -EINVAL;
 }