On 09/20, Dave Jones wrote:
>
> It looks like both 64a16caf5, and 98abed020 both introduced error paths to
> do_wait
> where we miss unlocking the tasklist.
>
> Spotted with coverity.
Not really, afaics.
> --- a/kernel/exit.c
> +++ b/kernel/exit.c
> @@ -1526,13 +1526,15 @@ repeat:
> tsk = current;
> do {
> retval = do_wait_thread(wo, tsk);
> - if (retval)
> + if (retval) {
> + read_unlock(&tasklist_lock);
note that do_wait_thread() paths should drop tasklist if it returns non-zero.
Oleg.
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