Re: [PATCH] sched/core: Fix error pointer dereference

[Ethan Tidmore]

On Fri Feb 20, 2026 at 4:20 AM CST, Peter Zijlstra wrote:
> On Tue, Feb 17, 2026 at 12:06:33PM -0600, Ethan Tidmore wrote:
>> The function idle_thread_get() can return an error pointer and is not
>> checked for one. Add check for error pointer.
>> 
>> Detected by Smatch:
>> kernel/cpu.c:911 finish_cpu() error:
>> 'idle' dereferencing possible ERR_PTR()
>
> How could this possibly happen?
>

Sorry about that, must be a false positive. I'll be more careful next
time.

Thanks,

ET