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Commit 1f100b32 authored by Alan Cox's avatar Alan Cox Committed by Greg Kroah-Hartman
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tty: sdio_uart: Fix the locking on "func" for new code 



The new dtr_rts function didn't take the port->func lock as it should
so add use of the lock there.


Signed-off-by: default avatarAlan Cox <alan@linux.intel.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 4b3b49bb

drivers/mmc/card/sdio_uart.c

+4 −0
Original line number Diff line number Diff line
@@ -603,10 +603,14 @@ static void uart_dtr_rts(struct tty_port *tport, int onoff) 
{

	struct sdio_uart_port *port =

			container_of(tport, struct sdio_uart_port, port);

	int ret = sdio_uart_claim_func(port);

	if (ret)

		return;

	if (onoff == 0)

		sdio_uart_clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);

	else

		sdio_uart_set_mctrl(port, TIOCM_DTR | TIOCM_RTS);

	sdio_uart_release_func(port);

}



/**