md/bitmap: white space clean up and similar.

Fixes some whitespace problems
Fixed some checkpatch.pl complaints.
Replaced kmalloc ... memset(0), with kzalloc
Fixed an unlikely memory leak on an error path.
Reformatted a number of 'if/else' sets, sometimes
replacing goto with an else clause.
Removed some old comments and commented-out code.

Signed-off-by: NeilBrown <neilb@suse.de>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/md/md.h b/drivers/md/md.h
index 57eb864a8249..209993207a55 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -319,7 +319,7 @@ struct mddev_s
                                                          */
                 struct mutex            mutex;
                 unsigned long           chunksize;
-                unsigned long           daemon_sleep; /* how many seconds between updates? */
+                unsigned long           daemon_sleep; /* how many jiffies between updates? */
                 unsigned long           max_write_behind; /* write-behind mode */
                 int                     external;
         } bitmap_info;