[PATCH] power: trivial comment fixes

[Wu Fengguang <fengguang.wu@intel.com>]

CC: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
---
 kernel/power/snapshot.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- linux.orig/kernel/power/snapshot.c
+++ linux/kernel/power/snapshot.c
@@ -233,7 +233,7 @@ static void *chain_alloc(struct chain_al
 
 #define BM_END_OF_MAP	(~0UL)
 
-#define BM_BITS_PER_BLOCK	(PAGE_SIZE << 3)
+#define BM_BITS_PER_BLOCK	(PAGE_SIZE * BITS_PER_BYTE)
 
 struct bm_block {
 	struct list_head hook;	/* hook into a list of bitmap blocks */
@@ -275,7 +275,7 @@ static void memory_bm_free(struct memory
 
 /**
  *	create_bm_block_list - create a list of block bitmap objects
- *	@nr_blocks - number of blocks to allocate
+ *	@pages - number of pages to track
  *	@list - list to put the allocated blocks into
  *	@ca - chain allocator to be used for allocating memory
  */