USB: ftdi_sio: Quiet sparse noise about using plain integer was NULL pointer

commit a816e3113b63753c330ca4751ea1d208e93e3015 upstream.

Pointers should not be compared to plain integers.
Quiets the sparse warning:
warning: Using plain integer as NULL pointer

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index 8d686cb..ce9f87f 100644 (file)
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -2169,7 +2169,7 @@ static void ftdi_set_termios(struct tty_struct *tty,
 
        cflag = termios->c_cflag;
 
-       if (old_termios == 0)
+       if (!old_termios)
                goto no_skip;
 
        if (old_termios->c_cflag == termios->c_cflag