linux-kernel - [PATCH] torture-test modules: Remove unnecessary "ret" variables

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Message-Id: <20180922012132.23373-1-pierceagriffiths@gmail.com>
Date:   Fri, 21 Sep 2018 20:21:31 -0500
From:   Pierce Griffiths <pierceagriffiths@...il.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     pierceagriffiths@...il.com, Davidlohr Bueso <dave@...olabs.net>,
        "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
        Josh Triplett <josh@...htriplett.org>,
        linux-kernel@...r.kernel.org
Subject: [PATCH] torture-test modules: Remove unnecessary "ret" variables

Remove return variables (declared as "ret") in cases where,
depending on whether a condition evaluates as true, the result of a
function call can be immediately returned instead of storing the result in
the return variable. When the condition evaluates as false, the constant
initially stored in the return variable at declaration is returned instead.

Signed-off-by: Pierce Griffiths <pierceagriffiths@...il.com>
---
 kernel/torture.c | 22 ++++++++--------------
 1 file changed, 8 insertions(+), 14 deletions(-)

diff --git a/kernel/torture.c b/kernel/torture.c
index 1ac24a826589..f4cec6db7f3c 100644
--- a/kernel/torture.c
+++ b/kernel/torture.c
@@ -233,16 +233,15 @@ torture_onoff(void *arg)
  */
 int torture_onoff_init(long ooholdoff, long oointerval)
 {
-	int ret = 0;
-
 #ifdef CONFIG_HOTPLUG_CPU
 	onoff_holdoff = ooholdoff;
 	onoff_interval = oointerval;
 	if (onoff_interval <= 0)
 		return 0;
-	ret = torture_create_kthread(torture_onoff, NULL, onoff_task);
-#endif /* #ifdef CONFIG_HOTPLUG_CPU */
-	return ret;
+	return torture_create_kthread(torture_onoff, NULL, onoff_task);
+#else /* #ifdef CONFIG_HOTPLUG_CPU */
+	return 0;
+#endif /* #else #ifdef CONFIG_HOTPLUG_CPU */
 }
 EXPORT_SYMBOL_GPL(torture_onoff_init);
 
@@ -513,15 +512,13 @@ static int torture_shutdown(void *arg)
  */
 int torture_shutdown_init(int ssecs, void (*cleanup)(void))
 {
-	int ret = 0;
-
 	torture_shutdown_hook = cleanup;
 	if (ssecs > 0) {
 		shutdown_time = ktime_add(ktime_get(), ktime_set(ssecs, 0));
-		ret = torture_create_kthread(torture_shutdown, NULL,
+		return torture_create_kthread(torture_shutdown, NULL,
 					     shutdown_task);
 	}
-	return ret;
+	return 0;
 }
 EXPORT_SYMBOL_GPL(torture_shutdown_init);
 
@@ -619,13 +616,10 @@ static int torture_stutter(void *arg)
 /*
  * Initialize and kick off the torture_stutter kthread.
  */
-int torture_stutter_init(int s)
+int torture_stutter_init(const int s)
 {
-	int ret;
-
 	stutter = s;
-	ret = torture_create_kthread(torture_stutter, NULL, stutter_task);
-	return ret;
+	return torture_create_kthread(torture_stutter, NULL, stutter_task);
 }
 EXPORT_SYMBOL_GPL(torture_stutter_init);
 
-- 
2.19.0