staging: unisys: visorbus: replaced vague variable name in zoneguid_show

The variable name "s" doesn't indicate the purpose of the string, which
is to store the id collected from the visorchannel_zoneid function. This
just replaces the name with "zoneid".
Signed-off-by: Alexander Curtin <alexander.curtin@unisys.com>
Signed-off-by: David Kershner <david.kershner@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/unisys/visorbus/visorbus_main.c

@@ -291,12 +291,12 @@ static ssize_t zoneguid_show(struct device *dev, struct device_attribute *attr,
 			     char *buf)
 {
 	struct visor_device *vdev = to_visor_device(dev);
-	char s[99];
+	char zoneid[99];
 
 	if (!vdev->visorchannel)
 		return 0;
 	return snprintf(buf, PAGE_SIZE, "%s\n",
-			visorchannel_zoneid(vdev->visorchannel, s));
+			visorchannel_zoneid(vdev->visorchannel, zoneid));
 }
 
 static ssize_t typename_show(struct device *dev, struct device_attribute *attr,