ALSA: xen-front: fix a loop timeout

We want the loop to exit when "to" is set to zero, but in the current
code it's set to -1.  Also I tweaked the indenting so it doesn't look
like we're passing "--to" to xenbus_read_unsigned().

Fixes: cc3196ae197c ("ALSA: xen-front: Introduce Xen para-virtualized sound frontend driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/xen/xen_snd_front.c b/sound/xen/xen_snd_front.c
index c18973a9bc9bf509bef879d0e40d48c5f501a2e7..b089b13b51607c2df673f936efb37ff681b382e1 100644 (file)
--- a/sound/xen/xen_snd_front.c
+++ b/sound/xen/xen_snd_front.c
@@ -334,7 +334,7 @@ static int xen_drv_remove(struct xenbus_device *dev)
         */
        while ((xenbus_read_unsigned(front_info->xb_dev->otherend, "state",
                                     XenbusStateUnknown) != XenbusStateInitWait) &&
-                                    to--)
+              --to)
                msleep(10);
 
        if (!to) {