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serial: ar933x_uart: Fix off-by-one for checking valid alias id

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Current code uses the alias id as array subscript of ar933x_console_ports.
So the valid id is 0 ... CONFIG_SERIAL_AR933X_NR_UARTS - 1.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Axel Lin 2015-02-23 11:34:30 +08:00 committed by Greg Kroah-Hartman
parent 1d267ea653
commit bb8478d7d6
1 changed files with 1 additions and 1 deletions
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2
drivers/tty/serial/ar933x_uart.c
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@ -649,7 +649,7 @@ static int ar933x_uart_probe(struct platform_device *pdev)
id = 0;
}
if (id > CONFIG_SERIAL_AR933X_NR_UARTS)
if (id >= CONFIG_SERIAL_AR933X_NR_UARTS)
return -EINVAL;
irq_res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);