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Diffstat (limited to 'deps/uv/src/unix/posix-poll.c')
-rw-r--r--deps/uv/src/unix/posix-poll.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/deps/uv/src/unix/posix-poll.c b/deps/uv/src/unix/posix-poll.c
index f3181f9b72..a3b9f2196d 100644
--- a/deps/uv/src/unix/posix-poll.c
+++ b/deps/uv/src/unix/posix-poll.c
@@ -298,6 +298,8 @@ update_timeout:
void uv__platform_invalidate_fd(uv_loop_t* loop, int fd) {
size_t i;
+ assert(fd >= 0);
+
if (loop->poll_fds_iterating) {
/* uv__io_poll is currently iterating. Just invalidate fd. */
for (i = 0; i < loop->poll_fds_used; i++)