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USB: ark3116 initialisation fix 

This patch for the usb serial ark3116 driver fixes an initialisation
ordering bug that gets triggered on hotplug when using at least recent
debian/ubuntu userspace. Without it, ark3116 serial cables don't work.

Signed-off-by: Bart Hartgers <bart.hartgers@gmail.com>
Tested-by: law_ence.dev@ntlworld.com
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Bart Hartgers 2011-10-26 13:29:42 +02:00 committed by Greg Kroah-Hartman
parent ab570da26e
commit 583182ba5f
1 changed files with 5 additions and 5 deletions
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10
drivers/usb/serial/ark3116.c
View File

@ -42,7 +42,7 @@ static int debug;
* Version information
*/
#define DRIVER_VERSION "v0.6"
#define DRIVER_VERSION "v0.7"
#define DRIVER_AUTHOR "Bart Hartgers <bart.hartgers+ark3116@gmail.com>"
#define DRIVER_DESC "USB ARK3116 serial/IrDA driver"
#define DRIVER_DEV_DESC "ARK3116 RS232/IrDA"
@ -380,10 +380,6 @@ static int ark3116_open(struct tty_struct *tty, struct usb_serial_port *port)
goto err_out;
}
/* setup termios */
if (tty)
ark3116_set_termios(tty, port, NULL);
/* remove any data still left: also clears error state */
ark3116_read_reg(serial, UART_RX, buf);
@ -406,6 +402,10 @@ static int ark3116_open(struct tty_struct *tty, struct usb_serial_port *port)
/* enable DMA */
ark3116_write_reg(port->serial, UART_FCR, UART_FCR_DMA_SELECT);
/* setup termios */
if (tty)
ark3116_set_termios(tty, port, NULL);
err_out:
kfree(buf);
return result;