It looks like both 64a16caf5, and 98abed020 both introduced error paths to do_wait where we miss unlocking the tasklist.
Spotted with coverity. Signed-off-by: Dave Jones <[email protected]> diff --git a/kernel/exit.c b/kernel/exit.c index a949819..27004a6 100644 --- 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); goto end; - + } retval = ptrace_do_wait(wo, tsk); - if (retval) + if (retval) { + read_unlock(&tasklist_lock); goto end; - + } if (wo->wo_flags & __WNOTHREAD) break; } while_each_thread(current, tsk); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
