librt -- aio: lio_listio: Do not dereference NULL sigevp.

Reported-by: Z`
thesjg · Oct 26, 2011 · 019e715 · 019e715
1 parent cb7575e
commit 019e715
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/lib/librt/aio.c b/lib/librt/aio.c
@@ -157,7 +157,8 @@ lio_listio(int mode, struct aiocb *const apv[], int nent,
 	int i;
 
 #ifndef notyet
-	if ((sigevp->sigev_notify != SIGEV_NONE) &&
+	if (sigevp &&
+	    (sigevp->sigev_notify != SIGEV_NONE) &&
 	    (sigevp->sigev_notify != SIGEV_THREAD))
 		return (ENOSYS);
 #endif