s390: fix various typos

Fix various typos found with codespell.

Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
diff --git a/drivers/s390/cio/ccwgroup.c b/drivers/s390/cio/ccwgroup.c
index f053860..aa3292e 100644
--- a/drivers/s390/cio/ccwgroup.c
+++ b/drivers/s390/cio/ccwgroup.c
@@ -152,7 +152,7 @@ static ssize_t ccwgroup_online_show(struct device *dev,
 
 /*
  * Provide an 'ungroup' attribute so the user can remove group devices no
- * longer needed or accidentially created. Saves memory :)
+ * longer needed or accidentally created. Saves memory :)
  */
 static void ccwgroup_ungroup(struct ccwgroup_device *gdev)
 {