From: Alexey Pelykh <[email protected]> Fixes issue with division-by-zero exception, that occurred when a baud rate higher than 3Mbaud was requested.
Signed-off-by: Alexey Pelykh <[email protected]> Cc: Tony Lindgren <[email protected]> Cc: Felipe Balbi <[email protected]> Cc: Greg KH <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] --- diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c index 816d1a2..808a880 100644 --- a/drivers/tty/serial/omap-serial.c +++ b/drivers/tty/serial/omap-serial.c @@ -240,8 +240,8 @@ serial_omap_baud_is_mode16(struct uart_port *port, unsigned int baud) { unsigned int n13 = port->uartclk / (13 * baud); unsigned int n16 = port->uartclk / (16 * baud); - int baudAbsDiff13 = baud - (port->uartclk / (13 * n13)); - int baudAbsDiff16 = baud - (port->uartclk / (16 * n16)); + int baudAbsDiff13 = n13 ? (baud - (port->uartclk / (13 * n13))) : INT_MAX; + int baudAbsDiff16 = n16 ? (baud - (port->uartclk / (16 * n16))) : INT_MAX; if(baudAbsDiff13 < 0) baudAbsDiff13 = -baudAbsDiff13; if(baudAbsDiff16 < 0) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
