--- a/arch/arm/mach-omap2/serial.c
+++ b/arch/arm/mach-omap2/serial.c
@@ -258,6 +258,8 @@ char *cmdline_find_option(char *str)
 	return strstr(saved_command_line, str);
 }
 
+static struct omap_uart_state statebuf[4];
+
 static int __init omap_serial_early_init(void)
 {
 	do {
@@ -272,9 +274,9 @@ static int __init omap_serial_early_init
 		if (!oh)
 			break;
 
-		uart = kzalloc(sizeof(struct omap_uart_state), GFP_KERNEL);
-		if (WARN_ON(!uart))
+		if (WARN_ON(num_uarts >= ARRAY_SIZE(statebuf)))
 			return -ENODEV;
+		uart = &statebuf[num_uarts];
 
 		uart->oh = oh;
 		uart->num = num_uarts++;
