1 files changed, 6 insertions, 0 deletions

diff --git a/fs/squashfs/super.c b/fs/squashfs/super.c
index 88b4f8606652..ab1a401a0e19 100644
--- a/fs/squashfs/super.c
+++ b/fs/squashfs/super.c
@@ -87,11 +87,14 @@ static int squashfs_fill_super(struct super_block *sb, void *data, int silent)
         u64 lookup_table_start, xattr_id_table_start;
         int err;
 
+        lock_kernel();
+
         TRACE("Entered squashfs_fill_superblock\n");
 
         sb->s_fs_info = kzalloc(sizeof(*msblk), GFP_KERNEL);
         if (sb->s_fs_info == NULL) {
                 ERROR("Failed to allocate squashfs_sb_info\n");
+                unlock_kernel();
                 return -ENOMEM;
         }
         msblk = sb->s_fs_info;
@@ -301,6 +304,7 @@ allocate_root:
 
         TRACE("Leaving squashfs_fill_super\n");
         kfree(sblk);
+        unlock_kernel();
         return 0;
 
 failed_mount:
@@ -315,11 +319,13 @@ failed_mount:
         kfree(sb->s_fs_info);
         sb->s_fs_info = NULL;
         kfree(sblk);
+        unlock_kernel();
         return err;
 
 failure:
         kfree(sb->s_fs_info);
         sb->s_fs_info = NULL;
+        unlock_kernel();
         return -ENOMEM;
 }