Fix typo interrest[ing|ed] => interest[ing|ed]

Fix typos with interrest*.
Signed-off-by: Thomas Weber <weber@corscience.de>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

drivers/char/stallion.c

@@ -3180,7 +3180,7 @@ static void stl_cd1400flush(struct stlport *portp)
 
 /*
  *	Return the current state of data flow on this port. This is only
- *	really interresting when determining if data has fully completed
+ *	really interesting when determining if data has fully completed
  *	transmission or not... This is easy for the cd1400, it accurately
  *	maintains the busy port flag.
  */
@@ -4130,7 +4130,7 @@ static void stl_sc26198flush(struct stlport *portp)
 
 /*
  *	Return the current state of data flow on this port. This is only
- *	really interresting when determining if data has fully completed
+ *	really interesting when determining if data has fully completed
  *	transmission or not... The sc26198 interrupt scheme cannot
  *	determine when all data has actually drained, so we need to
  *	check the port statusy register to be sure.

drivers/net/wan/hdlc.c

@@ -109,7 +109,7 @@ static int hdlc_device_event(struct notifier_block *this, unsigned long event,
 		return NOTIFY_DONE; /* not an HDLC device */
 
 	if (event != NETDEV_CHANGE)
-		return NOTIFY_DONE; /* Only interrested in carrier changes */
+		return NOTIFY_DONE; /* Only interested in carrier changes */
 
 	on = netif_carrier_ok(dev);