[PATCH 12/15] driver/staging/android: Use RLIMIT_TO_NICE to replace opened code implementation.

[Dongsheng Yang]

There is a macro RLINIT_TO_NICE in linux/sched/prio.h to convert priority in rlimit
to nice value.

This patch replace the opened implementation with RLINIT_TO_NICE.

Signed-off-by: Dongsheng Yang <yangds.fnst at cn.fujitsu.com>
cc: devel at driverdev.osuosl.org
cc: Masanari Iida <standby24x7 at gmail.com>
cc: Bojan Prtvar <prtvar.b at gmail.com>
cc: Serban Constantinescu <serban.constantinescu at arm.com>
---
 drivers/staging/android/binder.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/android/binder.c b/drivers/staging/android/binder.c
index 1432d95..0cf5a49 100644
--- a/drivers/staging/android/binder.c
+++ b/drivers/staging/android/binder.c
@@ -436,12 +436,12 @@ static void binder_set_nice(long nice)
 		set_user_nice(current, nice);
 		return;
 	}
-	min_nice = 20 - current->signal->rlim[RLIMIT_NICE].rlim_cur;
+	min_nice = RLIMIT_TO_NICE(current->signal->rlim[RLIMIT_NICE].rlim_cur);
 	binder_debug(BINDER_DEBUG_PRIORITY_CAP,
 		     "%d: nice value %ld not allowed use %ld instead\n",
 		      current->pid, nice, min_nice);
 	set_user_nice(current, min_nice);
-	if (min_nice < 20)
+	if (min_nice <= MAX_NICE)
 		return;
 	binder_user_error("%d RLIMIT_NICE not set\n", current->pid);
 }
-- 
1.8.2.1