trivial: fix typo "varaible" -> "variable"

This patch was created by

	git grep -l '[vV]araible' | xargs -r -t perl -p -i -e 's/\b([Vv]ar)ai(bles?)\b/$1ia$2/g'

Signed-off-by: Uwe Kleine-Koenig <Uwe.Kleine-Koenig@digi.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/net/skfp/h/hwmtm.h b/drivers/net/skfp/h/hwmtm.h
index 1a606d4..e1a7e5f 100644
--- a/drivers/net/skfp/h/hwmtm.h
+++ b/drivers/net/skfp/h/hwmtm.h
@@ -145,7 +145,7 @@
 	int	leave_isr ;		/* leave fddi_isr immedeately if set */
 	int	isr_flag ;		/* set, when HWM is entered from isr */
 	/*
-	 * varaibles for the current transmit frame
+	 * variables for the current transmit frame
 	 */
 	struct s_smt_tx_queue *tx_p ;	/* pointer to the transmit queue */
 	u_long	tx_descr ;		/* tx descriptor for FORMAC+ */