Fix a potential hang on an empty file list.

Fixes bug 8423.

1 files changed, 3 insertions, 0 deletions

diff --git a/io.c b/io.c
index 7cb3be13..b4e0a682 100644
--- a/io.c
+++ b/io.c
@@ -912,6 +912,9 @@ void noop_io_until_death(void)
 {
 	char buf[1024];
 
+	if (!iobuf.in.buf || !iobuf.out.buf || iobuf.in_fd == -1 || iobuf.out_fd == -1)
+		return;
+
 	kluge_around_eof = 2;
 	/* Setting an I/O timeout ensures that if something inexplicably weird
 	 * happens, we won't hang around forever. */