fix similar typos to successfull

When I review ocfs2 code, find there are 2 typos to "successfull".  After
doing grep "successfull " in kernel tree, 22 typos found totally -- great
minds always think alike :)

This patch fixes all the similar typos. Thanks for Randy's ack and comments.

Signed-off-by: Coly Li <coyli@suse.de>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Roland Dreier <rolandd@cisco.com>
Cc: Jeremy Kerr <jk@ozlabs.org>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Theodore Ts'o <tytso@mit.edu>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Vlad Yasevich <vladislav.yasevich@hp.com>
Cc: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c
index 06b7182..659f8a7 100644
--- a/drivers/s390/cio/cio.c
+++ b/drivers/s390/cio/cio.c
@@ -379,7 +379,7 @@
 		if (ccode < 0) /* -EIO if msch gets a program check. */
 			return ccode;
 		switch (ccode) {
-		case 0: /* successfull */
+		case 0: /* successful */
 			if (stsch(sch->schid, &schib) ||
 			    !css_sch_is_valid(&schib))
 				return -ENODEV;
diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c
index 744f928..10cb0f8 100644
--- a/drivers/s390/cio/qdio_main.c
+++ b/drivers/s390/cio/qdio_main.c
@@ -114,7 +114,7 @@
  * @count: count of buffers to examine
  * @auto_ack: automatically acknowledge buffers
  *
- * Returns the number of successfull extracted equal buffer states.
+ * Returns the number of successfully extracted equal buffer states.
  * Stops processing if a state is different from the last buffers state.
  */
 static int qdio_do_eqbs(struct qdio_q *q, unsigned char *state,