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-rw-r--r--drivers/tty/serial/sirfsoc_uart.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/tty/serial/sirfsoc_uart.c b/drivers/tty/serial/sirfsoc_uart.c
index 9925b00a9777..38622f2a30a9 100644
--- a/drivers/tty/serial/sirfsoc_uart.c
+++ b/drivers/tty/serial/sirfsoc_uart.c
@@ -1283,6 +1283,11 @@ static int sirfsoc_uart_probe(struct platform_device *pdev)
goto err;
}
sirfport->port.line = of_alias_get_id(np, "serial");
+ if (sirfport->port.line >= ARRAY_SIZE(sirf_ports)) {
+ dev_err(&pdev->dev, "serial%d out of range\n",
+ sirfport->port.line);
+ return -EINVAL;
+ }
sirf_ports[sirfport->port.line] = sirfport;
sirfport->port.iotype = UPIO_MEM;
sirfport->port.flags = UPF_BOOT_AUTOCONF;