[MTD] Use DIV_ROUND_UP

The kernel.h macro DIV_ROUND_UP performs the computation (((n) + (d) - 1) /
(d)) but is perhaps more readable.

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
diff --git a/drivers/mtd/ssfdc.c b/drivers/mtd/ssfdc.c
index a5f3d60..33a5d6e 100644
--- a/drivers/mtd/ssfdc.c
+++ b/drivers/mtd/ssfdc.c
@@ -321,8 +321,7 @@
 	DEBUG(MTD_DEBUG_LEVEL1,
 		"SSFDC_RO: cis_block=%d,erase_size=%d,map_len=%d,n_zones=%d\n",
 		ssfdc->cis_block, ssfdc->erase_size, ssfdc->map_len,
-		(ssfdc->map_len + MAX_PHYS_BLK_PER_ZONE - 1) /
-		MAX_PHYS_BLK_PER_ZONE);
+		DIV_ROUND_UP(ssfdc->map_len, MAX_PHYS_BLK_PER_ZONE));
 
 	/* Set geometry */
 	ssfdc->heads = 16;