linux-kernel - [PATCH tip/core/rcu 33/55] rcutorture: Clean up rcu_torture

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Date:	Mon, 17 Feb 2014 14:12:37 -0800
From:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:	linux-kernel@...r.kernel.org
Cc:	mingo@...nel.org, laijs@...fujitsu.com, dipankar@...ibm.com,
	akpm@...ux-foundation.org, mathieu.desnoyers@...icios.com,
	josh@...htriplett.org, niv@...ibm.com, tglx@...utronix.de,
	peterz@...radead.org, rostedt@...dmis.org, dhowells@...hat.com,
	edumazet@...gle.com, darren@...art.com, fweisbec@...il.com,
	oleg@...hat.com, sbw@....edu,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Subject: [PATCH tip/core/rcu 33/55] rcutorture: Clean up rcu_torture_init() error checking

From: "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>

This commit applies some simple cleanups to rcu_torture_init() error
checking.

Signed-off-by: Paul E. McKenney <paulmck@...ux.vnet.ibm.com>
---
 kernel/rcu/rcutorture.c | 31 ++++++++++---------------------
 1 file changed, 10 insertions(+), 21 deletions(-)

diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c
index 9f42d320531d..4402b95b376b 100644
--- a/kernel/rcu/rcutorture.c
+++ b/kernel/rcu/rcutorture.c
@@ -1459,7 +1459,6 @@ rcu_torture_init(void)
 	int i;
 	int cpu;
 	int firsterr = 0;
-	int retval;
 	static struct rcu_torture_ops *torture_ops[] = {
 		&rcu_ops, &rcu_bh_ops, &srcu_ops, &sched_ops,
 	};
@@ -1628,33 +1627,23 @@ rcu_torture_init(void)
 		for_each_possible_cpu(i) {
 			if (cpu_is_offline(i))
 				continue;  /* Heuristic: CPU can go offline. */
-			retval = rcutorture_booster_init(i);
-			if (retval < 0) {
-				firsterr = retval;
+			firsterr = rcutorture_booster_init(i);
+			if (firsterr)
 				goto unwind;
-			}
 		}
 	}
-	i = torture_shutdown_init(shutdown_secs, rcu_torture_cleanup);
-	if (i != 0) {
-		firsterr = i;
+	firsterr = torture_shutdown_init(shutdown_secs, rcu_torture_cleanup);
+	if (firsterr)
 		goto unwind;
-	}
-	i = torture_onoff_init(onoff_holdoff * HZ, onoff_interval * HZ);
-	if (i != 0) {
-		firsterr = i;
+	firsterr = torture_onoff_init(onoff_holdoff * HZ, onoff_interval * HZ);
+	if (firsterr)
 		goto unwind;
-	}
-	i = rcu_torture_stall_init();
-	if (i != 0) {
-		firsterr = i;
+	firsterr = rcu_torture_stall_init();
+	if (firsterr)
 		goto unwind;
-	}
-	retval = rcu_torture_barrier_init();
-	if (retval != 0) {
-		firsterr = retval;
+	firsterr = rcu_torture_barrier_init();
+	if (firsterr)
 		goto unwind;
-	}
 	if (object_debug)
 		rcu_test_debug_objects();
 	rcutorture_record_test_transition();
-- 
1.8.1.5

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