File 0537-erts-Fix-too-early-close-of-spawn-driver-fd.patch of Package erlang

From 336eea33ebb8287736327370607c77a9589f7e0b Mon Sep 17 00:00:00 2001
From: Lukas Larsson <lukas@erlang.org>
Date: Thu, 17 Jan 2019 13:41:58 +0100
Subject: [PATCH] erts: Fix too early close of spawn driver fd

---
 erts/emulator/sys/unix/sys_drivers.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/erts/emulator/sys/unix/sys_drivers.c b/erts/emulator/sys/unix/sys_drivers.c
index 816bdea9c5..2f5459bee5 100644
--- a/erts/emulator/sys/unix/sys_drivers.c
+++ b/erts/emulator/sys/unix/sys_drivers.c
@@ -998,9 +998,9 @@ static void clear_fd_data(ErtsSysFdData *fdd)
     fdd->psz = 0;
 }
 
-static void nbio_stop_fd(ErlDrvPort prt, ErtsSysFdData *fdd)
+static void nbio_stop_fd(ErlDrvPort prt, ErtsSysFdData *fdd, int use)
 {
-    driver_select(prt, abs(fdd->fd), ERL_DRV_USE_NO_CALLBACK|DO_READ|DO_WRITE, 0);
+    driver_select(prt, abs(fdd->fd), use ? ERL_DRV_USE_NO_CALLBACK : 0|DO_READ|DO_WRITE, 0);
     clear_fd_data(fdd);
     SET_BLOCKING(abs(fdd->fd));
 
@@ -1020,11 +1020,11 @@ static void fd_stop(ErlDrvData ev)  /* Does not close the fds */
 
     if (dd->ifd) {
         sz += sizeof(ErtsSysFdData);
-        nbio_stop_fd(prt, dd->ifd);
+        nbio_stop_fd(prt, dd->ifd, 1);
     }
     if (dd->ofd && dd->ofd != dd->ifd) {
         sz += sizeof(ErtsSysFdData);
-        nbio_stop_fd(prt, dd->ofd);
+        nbio_stop_fd(prt, dd->ofd, 1);
     }
 
      erts_free(ERTS_ALC_T_DRV_TAB, dd);
@@ -1070,12 +1070,12 @@ static void stop(ErlDrvData ev)
     ErlDrvPort prt = dd->port_num;
 
     if (dd->ifd) {
-        nbio_stop_fd(prt, dd->ifd);
+        nbio_stop_fd(prt, dd->ifd, 0);
         driver_select(prt, abs(dd->ifd->fd), ERL_DRV_USE, 0);  /* close(ifd); */
     }
 
     if (dd->ofd && dd->ofd != dd->ifd) {
-	nbio_stop_fd(prt, dd->ofd);
+	nbio_stop_fd(prt, dd->ofd, 0);
 	driver_select(prt, abs(dd->ofd->fd), ERL_DRV_USE, 0);  /* close(ofd); */
     }
 
-- 
2.16.4