tcp: ulp: avoid module refcnt leak in tcp_set_ulp

[karo-tx-linux.git] / kernel / cpu.c

diff --git a/kernel/cpu.c b/kernel/cpu.c
index ab860453841dfd244c141f329fa9cdecc1f9e063..eee0331342628f09a02720ffe34aba2f8fb12f31 100644 (file)
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -279,7 +279,8 @@ static int bringup_wait_for_ap(unsigned int cpu)
 
        /* Wait for the CPU to reach CPUHP_AP_ONLINE_IDLE */
        wait_for_completion(&st->done);
-       BUG_ON(!cpu_online(cpu));
+       if (WARN_ON_ONCE((!cpu_online(cpu))))
+               return -ECANCELED;
 
        /* Unpark the stopper thread and the hotplug thread of the target cpu */
        stop_machine_unpark(cpu);