sdio_uart: Fix SDIO break control to now return success or an error

This is a consequence of patch 9ea761bfef52c116fed4715d4043392c2503fe6a.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>

1 files changed, 6 insertions, 3 deletions

diff --git a/drivers/mmc/card/sdio_uart.c b/drivers/mmc/card/sdio_uart.c
index eeea84c309e6..78ad48718ab0 100644
--- a/drivers/mmc/card/sdio_uart.c
+++ b/drivers/mmc/card/sdio_uart.c
@@ -885,12 +885,14 @@ static void sdio_uart_set_termios(struct tty_struct *tty, struct ktermios *old_t
         sdio_uart_release_func(port);
 }
 
-static void sdio_uart_break_ctl(struct tty_struct *tty, int break_state)
+static int sdio_uart_break_ctl(struct tty_struct *tty, int break_state)
 {
         struct sdio_uart_port *port = tty->driver_data;
+        int result;
 
-        if (sdio_uart_claim_func(port) != 0)
-                return;
+        result = sdio_uart_claim_func(port);
+        if (result != 0)
+                return result;
 
         if (break_state == -1)
                 port->lcr |= UART_LCR_SBC;
@@ -899,6 +901,7 @@ static void sdio_uart_break_ctl(struct tty_struct *tty, int break_state)
         sdio_out(port, UART_LCR, port->lcr);
 
         sdio_uart_release_func(port);
+        return 0;
 }
 
 static int sdio_uart_tiocmget(struct tty_struct *tty, struct file *file)