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Subject[PATCH] sched/rt.c: handle exceptions gracefully
handle exceptions gracefully, and avoid using
if (0) .

Signed-off-by: Hui Su <sh_def@163.com>
---
kernel/sched/rt.c | 13 +++++++------
1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c
index f215eea6a966..1dd6cbd67e6e 100644
--- a/kernel/sched/rt.c
+++ b/kernel/sched/rt.c
@@ -2753,14 +2753,15 @@ int sched_rt_handler(struct ctl_table *table, int write, void *buffer,
sched_rt_do_global();
sched_dl_do_global();
}
- if (0) {
-undo:
- sysctl_sched_rt_period = old_period;
- sysctl_sched_rt_runtime = old_runtime;
- }
- mutex_unlock(&mutex);

+out:
+ mutex_unlock(&mutex);
return ret;
+
+undo:
+ sysctl_sched_rt_period = old_period;
+ sysctl_sched_rt_runtime = old_runtime;
+ goto out;
}

int sched_rr_handler(struct ctl_table *table, int write, void *buffer,
--
2.25.1

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