BUG#9303 blob field with specified length < 256 does not create tinyblob

mysql-test/r/type_blob.result:
  Test creates a blob(250 whcih is now displayed as tinyblob when SHOW COLUMNS is called.
sql/sql_parse.cc:
  Added missing else so that FIELD_TINY_BLOB can be selected

mysql-test/r/type_blob.result

@@ -4,7 +4,7 @@ show columns from t1;
 Field	Type	Null	Key	Default	Extra
 a	blob	YES		NULL	
 b	text	YES		NULL	
-c	blob	YES		NULL	
+c	tinyblob	YES		NULL	
 d	mediumtext	YES		NULL	
 e	longtext	YES		NULL	
 CREATE TABLE t2 (a char(257), b varbinary(70000), c varchar(70000000));

sql/sql_parse.cc

@@ -4404,7 +4404,7 @@ bool add_field_to_list(THD *thd, char *field_name, enum_field_types type,
       /* The user has given a length to the blob column */
       if (new_field->length < 256)
 	type= FIELD_TYPE_TINY_BLOB;
-      if (new_field->length < 65536)
+      else if (new_field->length < 65536)
 	type= FIELD_TYPE_BLOB;
       else if (new_field->length < 256L*256L*256L)
 	type= FIELD_TYPE_MEDIUM_BLOB;