diff --git a/fs/udf/namei.c b/fs/udf/namei.c
index 51fe307..833c1b6 100644
--- a/fs/udf/namei.c
+++ b/fs/udf/namei.c
@@ -983,6 +983,8 @@ static int udf_symlink(struct inode * dir, struct dentry * dentry, const char *
 		block = udf_get_pblock(inode->i_sb, block,
 			UDF_I_LOCATION(inode).partitionReferenceNum, 0);
 		epos.bh = udf_tread(inode->i_sb, block);
+		if (!epos.bh)
+			BUG();
 		lock_buffer(epos.bh);
 		memset(epos.bh->b_data, 0x00, inode->i_sb->s_blocksize);
 		set_buffer_uptodate(epos.bh);