parisc: Check return value of smp_boot_one_cpu()

PATCH New Helge Deller 1 participant 1 message Sep 20, 2016 PA-RISC architecture

lore

Share & tools

lore

Helge Deller

author maintainer

2016-09-20 15:29 UTC #0 lore raw

PATCH 1/1 parisc: Check return value of smp_boot_one_cpu()

Check return value of smp_boot_one_cpu() whether CPU could be brought up.

Reported-by John David Anglin <[email protected]>

Signed-off-by Helge Deller <[email protected]>

arch/parisc/kernel/smp.c +2 -2

index c2a9cc5..75dab28 100644
@@ -412,8 +412,8 @@ void smp_cpus_done(unsigned int cpu_max)
 
 int __cpu_up(unsigned int cpu, struct task_struct *tidle)
 {
-	if (cpu != 0 && cpu < parisc_max_cpus)
-		smp_boot_one_cpu(cpu, tidle);
+	if (cpu != 0 && cpu < parisc_max_cpus && smp_boot_one_cpu(cpu, tidle))
+		return -ENOSYS;
 
 	return cpu_online(cpu) ? 0 : -ENOSYS;
 }