struct inode *inode = dentry->d_inode;
        int ret = 0;
 
-       J_ASSERT(ext4_journal_current_handle() == 0);
+       J_ASSERT(ext4_journal_current_handle() == NULL);
 
        /*
         * data=writeback:
 
                }
                if (buffer_new(&dummy)) {
                        J_ASSERT(create != 0);
-                       J_ASSERT(handle != 0);
+                       J_ASSERT(handle != NULL);
 
                        /*
                         * Now that we do not always journal data, we should
 
        int total_ino, total_blk;
        void *base, *start, *end;
        int extra_isize = 0, error = 0, tried_min_extra_isize = 0;
-       int s_min_extra_isize = EXT4_SB(inode->i_sb)->s_es->s_min_extra_isize;
+       int s_min_extra_isize = le16_to_cpu(EXT4_SB(inode->i_sb)->s_es->s_min_extra_isize);
 
        down_write(&EXT4_I(inode)->xattr_sem);
 retry:
 
                i.name = b_entry_name;
                i.value = buffer;
-               i.value_len = cpu_to_le32(size);
+               i.value_len = size;
                error = ext4_xattr_block_find(inode, &i, bs);
                if (error)
                        goto cleanup;