staging: comedi: drivers: use DIV_ROUND_UP

Author: Tapasweni Pathak <tapaswenipathak@gmail.com>

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

Coccinelle script used :

// 
@haskernel@
@@
@depends on haskernel@
expression n,d;
@@
(
- (n + d - 1) / d
+ DIV_ROUND_UP(n,d)
|
- (n + (d - 1)) / d
+ DIV_ROUND_UP(n,d)
)
@depends on haskernel@
expression n,d;
@@
- DIV_ROUND_UP((n),d)
+ DIV_ROUND_UP(n,d)
@depends on haskernel@
expression n,d;
@@
- DIV_ROUND_UP(n,(d))
+ DIV_ROUND_UP(n,d)
// 

Signed-off-by: Tapasweni Pathak 
Signed-off-by: Greg Kroah-Hartman 

---
 drivers/staging/comedi/drivers/s626.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
 
diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c
index 0e7621e..bc07450 100644
--- a/drivers/staging/comedi/drivers/s626.c
+++ b/drivers/staging/comedi/drivers/s626.c
@@ -1976,7 +1976,7 @@ static int s626_ns_to_timer(unsigned int *nanosec, unsigned int flags)
 		divider = (*nanosec) / base;
 		break;
 	case CMDF_ROUND_UP:
-		divider = (*nanosec + base - 1) / base;
+		divider = DIV_ROUND_UP(*nanosec, base);
 		break;
 	}