samsung: board/misc: check returned pointer for get_board_type() calls

The function get_board_type() is called in two places by common code,
but the returned pointer was never check.

This commit adds checking the returned pointer, before use it.

Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com>
Cc: Minkyu Kang <mk7.kang@samsung.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Anand Moon <linux.amoon@gmail.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

board/samsung/common/board.c

@@ -304,8 +304,8 @@ int checkboard(void)
 	printf("Board: %s\n", board_info ? board_info : "unknown");
 #ifdef CONFIG_BOARD_TYPES
 	board_info = get_board_type();
-
-	printf("Model: %s\n", board_info ? board_info : "unknown");
+	if (board_info)
+		printf("Type:  %s\n", board_info);
 #endif
 	return 0;
 }

board/samsung/common/misc.c

@@ -85,6 +85,9 @@ void set_board_info(void)
 
 #ifdef CONFIG_BOARD_TYPES
 	bdtype = get_board_type();
+	if (!bdtype)
+		bdtype = "";
+
 	sprintf(info, "%s%s", bdname, bdtype);
 	setenv("boardname", info);
 #endif