make fdt_node_get_prop fail by end of node

main.c

@@ -187,7 +187,10 @@ static int fdt_node_get_prop(char * filename, char * fdt, char * strings, int of
 			buf_offset = 0;
 		}
 
-		if (FDT_PROP == fdt32_to_cpu(*(int *)(fdt_offset_ptr_(fdt, buf, buf_offset))))
+		int tag = fdt32_to_cpu(*(int *)(fdt_offset_ptr_(fdt, buf, buf_offset)));
+		if (FDT_END_NODE == tag)
+			break;
+		else if (FDT_PROP == tag)
 		{
 			const struct fdt_property *prop = fdt_offset_ptr_(fdt, buf, buf_offset);
 			debug("prop->nameoff: %x (%x)\n", fdt32_to_cpu(prop->nameoff), fdt_off_dt_strings(fdt));