[PATCH 5.15 176/207] preempt/dynamic: Fix setup_preempt_mode() return value

[Greg Kroah-Hartman]

From: Andrew Halaney <ahalaney@xxxxxxxxxx>

[ Upstream commit 9ed20bafc85806ca6c97c9128cec46c3ef80ae86 ]

__setup() callbacks expect 1 for success and 0 for failure. Correct the
usage here to reflect that.

Fixes: 826bfeb37bb4 ("preempt/dynamic: Support dynamic preempt with preempt= boot option")
Reported-by: Mark Rutland <mark.rutland@xxxxxxx>
Signed-off-by: Andrew Halaney <ahalaney@xxxxxxxxxx>
Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Link: https://lkml.kernel.org/r/20211203233203.133581-1-ahalaney@xxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 kernel/sched/core.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 6f4625f8276f1..4170ec15926ee 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -6660,11 +6660,11 @@ static int __init setup_preempt_mode(char *str)
 	int mode = sched_dynamic_mode(str);
 	if (mode < 0) {
 		pr_warn("Dynamic Preempt: unsupported mode: %s\n", str);
-		return 1;
+		return 0;
 	}
 
 	sched_dynamic_update(mode);
-	return 0;
+	return 1;
 }
 __setup("preempt=", setup_preempt_mode);
 
-- 
2.33.0