[PATCH 10/11] sdio_uart: Fix the locking on "func" for new code

Alan Cox
2009-11-03T14:32:25Z

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: Alan Cox <alan@linux.intel.com>
---

drivers/mmc/card/sdio_uart.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/drivers/mmc/card/sdio_uart.c b/drivers/mmc/card/sdio_uart.c
index ebb5d4b..0a3acfb 100644
--- a/drivers/mmc/card/sdio_uart.c
+++ b/drivers/mmc/card/sdio_uart.c
@@ -565,10 +565,14 @@ 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);
}

/**