sched_getaffinity(): return EINVAL for 0 lenght request (fixes LTP sched_getaffinity01)

2015-07-10 11:00:43 +09:00
parent 7647c99cc2
commit f7d78c8b7d
1 changed files with 3 additions and 0 deletions
--- a/kernel/syscall.c
+++ b/kernel/syscall.c
@@ -4832,6 +4832,9 @@ SYSCALL_DECLARE(sched_getaffinity)
 	unsigned long irqstate;
 	extern int num_processors;

+	if (!len)
+		return -EINVAL;
+
 	len = MIN2(len, sizeof(k_cpu_set));

 	if(tid == 0)