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-rw-r--r--hurd/hurdselect.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/hurd/hurdselect.c b/hurd/hurdselect.c
index 279ee5ec19..2996be2c8b 100644
--- a/hurd/hurdselect.c
+++ b/hurd/hurdselect.c
@@ -67,7 +67,7 @@ _hurd_select (int nfds,
assert (sizeof (union typeword) == sizeof (mach_msg_type_t));
assert (sizeof (uint32_t) == sizeof (mach_msg_type_t));
- if (nfds < 0 || nfds > FD_SETSIZE)
+ if (nfds < 0 || (pollfds == NULL && nfds > FD_SETSIZE))
{
errno = EINVAL;
return -1;