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Diffstat (limited to 'win32/win32.c')
-rw-r--r--win32/win32.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/win32/win32.c b/win32/win32.c
index 5cafb4a416..a6fb507e41 100644
--- a/win32/win32.c
+++ b/win32/win32.c
@@ -2818,7 +2818,7 @@ rb_w32_select_with_thread(int nfds, fd_set *rd, fd_set *wr, fd_set *ex,
if (else_rd.fdset->fd_count || else_wr.fdset->fd_count) {
r = do_select(nfds, rd, wr, ex, &zero); // polling
if (r < 0) break; // XXX: should I ignore error and return signaled handles?
- r = copy_fd(rd, else_rd.fdset);
+ r += copy_fd(rd, else_rd.fdset);
r += copy_fd(wr, else_wr.fdset);
if (ex)
r += ex->fd_count;