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sched_ext: idle: Fix errno loss in scx_idle_init()

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|| is a boolean operator, any nonzero (error) return short-circuits
to 1 rather than the actual errno. The caller in scx_init() logs and
propagates this value, so the wrong code reaches upper layers.

Signed-off-by: Cheng-Yang Chou <yphbchou0911@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Cheng-Yang Chou 2026-05-26 01:22:31 +08:00 committed by Tejun Heo
parent abdc2516f1
commit 6bf8973dde
1 changed files with 5 additions and 9 deletions
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14
kernel/sched/ext_idle.c
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@ -1509,13 +1509,9 @@ static const struct btf_kfunc_id_set scx_kfunc_set_select_cpu = {
int scx_idle_init(void)
{
int ret;
ret = register_btf_kfunc_id_set(BPF_PROG_TYPE_STRUCT_OPS, &scx_kfunc_set_idle) ||
register_btf_kfunc_id_set(BPF_PROG_TYPE_TRACING, &scx_kfunc_set_idle) ||
register_btf_kfunc_id_set(BPF_PROG_TYPE_SYSCALL, &scx_kfunc_set_idle) ||
register_btf_kfunc_id_set(BPF_PROG_TYPE_STRUCT_OPS, &scx_kfunc_set_select_cpu) ||
register_btf_kfunc_id_set(BPF_PROG_TYPE_SYSCALL, &scx_kfunc_set_select_cpu);
return ret;
return register_btf_kfunc_id_set(BPF_PROG_TYPE_STRUCT_OPS, &scx_kfunc_set_idle) ?:
register_btf_kfunc_id_set(BPF_PROG_TYPE_TRACING, &scx_kfunc_set_idle) ?:
register_btf_kfunc_id_set(BPF_PROG_TYPE_SYSCALL, &scx_kfunc_set_idle) ?:
register_btf_kfunc_id_set(BPF_PROG_TYPE_STRUCT_OPS, &scx_kfunc_set_select_cpu) ?:
register_btf_kfunc_id_set(BPF_PROG_TYPE_SYSCALL, &scx_kfunc_set_select_cpu);
}