Staging: batman-adv: permit setting ogm interval to JITTER*2

When trying to set the originator interval to 40ms, we are asked to set
it to a minimum value of 40ms. This patch permits setting an
originator interval of JITTER*2 (40ms by default) now.
Signed-off-by: Linus Lüssing <linus.luessing@web.de>
Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Sven Eckelmann <sven.eckelmann@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/batman-adv/bat_sysfs.c

@@ -163,7 +163,7 @@ static ssize_t store_orig_interval(struct kobject *kobj, struct attribute *attr,
 		return -EINVAL;
 	}
 
-	if (orig_interval_tmp <= JITTER * 2) {
+	if (orig_interval_tmp < JITTER * 2) {
 		printk(KERN_INFO "batman-adv:New originator interval too small: %li (min: %i)\n",
 		       orig_interval_tmp, JITTER * 2);
 		return -EINVAL;