diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2025-11-20 11:04:37 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2025-11-20 11:04:37 -0800 |
| commit | fd95357fd8c6778ac7dea6c57a19b8b182b6e91f (patch) | |
| tree | f697dd725c42c5f83673d2b39ac3574dda8bf17a /kernel/sched/ext.c | |
| parent | c966813ea1206abc50a4447cb05cd7419e506806 (diff) | |
| parent | 7b6216baae751369195fa3c83d434d23bcda406a (diff) | |
Merge tag 'sched_ext-for-6.18-rc6-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext
Pull sched_ext fix from Tejun Heo:
"One low risk and obvious fix: scx_enable() was dereferencing an error
pointer on helper kthread creation failure. Fixed"
* tag 'sched_ext-for-6.18-rc6-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext:
sched_ext: Fix scx_enable() crash on helper kthread creation failure
Diffstat (limited to 'kernel/sched/ext.c')
| -rw-r--r-- | kernel/sched/ext.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/kernel/sched/ext.c b/kernel/sched/ext.c index 7aae1d0ce37e..979484dab2d3 100644 --- a/kernel/sched/ext.c +++ b/kernel/sched/ext.c @@ -4479,8 +4479,11 @@ static struct scx_sched *scx_alloc_and_add_sched(struct sched_ext_ops *ops) goto err_free_gdsqs; sch->helper = kthread_run_worker(0, "sched_ext_helper"); - if (!sch->helper) + if (IS_ERR(sch->helper)) { + ret = PTR_ERR(sch->helper); goto err_free_pcpu; + } + sched_set_fifo(sch->helper->task); atomic_set(&sch->exit_kind, SCX_EXIT_NONE); |