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-rw-r--r--drivers/mmc/core/sdio_uart.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/mmc/core/sdio_uart.c b/drivers/mmc/core/sdio_uart.c
index c8f4eca7aad4..c36242b86b1d 100644
--- a/drivers/mmc/core/sdio_uart.c
+++ b/drivers/mmc/core/sdio_uart.c
@@ -803,7 +803,7 @@ static unsigned int sdio_uart_write_room(struct tty_struct *tty)
return FIFO_SIZE - kfifo_len(&port->xmit_fifo);
}
-static int sdio_uart_chars_in_buffer(struct tty_struct *tty)
+static unsigned int sdio_uart_chars_in_buffer(struct tty_struct *tty)
{
struct sdio_uart_port *port = tty->driver_data;
return kfifo_len(&port->xmit_fifo);