src: don't abort on EIO when restoring tty

EIO has been observed to be returned by the Linux kernel under some circumstances. Reading through drivers/tty/tty_io*.c, it seems to indicate the tty went away. Of course none of this is documented. Fixes: #28479 PR-URL: #28490 Reviewed-By: Michaël Zasso <[email protected]> Reviewed-By: Gireesh Punathil <[email protected]> Reviewed-By: Colin Ihrig <[email protected]> Reviewed-By: Anna Henningsen <[email protected]> Reviewed-By: Gus Caplan <[email protected]>
nodejs · Jul 2, 2019 · 1095635 · 1095635
1 parent 85496e9
commit 1095635
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/src/node.cc b/src/node.cc
@@ -692,7 +692,10 @@ void ResetStdio() {
       do
         err = tcsetattr(fd, TCSANOW, &s.termios);
       while (err == -1 && errno == EINTR);  // NOLINT
-      CHECK_NE(err, -1);
+      // EIO has been observed to be returned by the Linux kernel under some
+      // circumstances. Reading through drivers/tty/tty_io*.c, it seems to
+      // indicate the tty went away. Of course none of this is documented.
+      CHECK_IMPLIES(err == -1, errno == EIO);
     }
   }
 #endif  // __POSIX__