Revert problematic change to wait_reading_process_output.

* src/process.c (wait_reading_process_output): Revert 2009-08-30 change.
Not clear what it was for, and it causes various bugs.  (Bug#9839)

2 files changed, 9 insertions, 9 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index fad9b4f9e46..5ebd288710a 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,8 @@
+2011-10-29  Glenn Morris  <rgm@gnu.org>
+
+        * process.c (wait_reading_process_output): Revert 2009-08-30 change.
+        Not clear what it was for, and it causes various bugs.  (Bug#9839)
+
 2011-10-28  Eli Zaretskii  <eliz@gnu.org>
 
         * xdisp.c (note_mouse_highlight): Initialize `part', to avoid a
diff --git a/src/process.c b/src/process.c
index dc37ec5f961..c316139a713 100644
--- a/src/process.c
+++ b/src/process.c
@@ -4856,16 +4856,11 @@ wait_reading_process_output (int time_limit, int microsecs, int read_kbd,
                  It can't hurt.  */
               else if (nread == -1 && errno == EIO)
                 {
-                  /* Clear the descriptor now, so we only raise the
-                     signal once.  Don't do this if `process' is only
-                     a pty.  */
-                  if (XPROCESS (proc)->pid != -2)
-                    {
-                      FD_CLR (channel, &input_wait_mask);
-                      FD_CLR (channel, &non_keyboard_wait_mask);
+                  /* Clear the descriptor now, so we only raise the signal once.  */
+                  FD_CLR (channel, &input_wait_mask);
+                  FD_CLR (channel, &non_keyboard_wait_mask);
 
-                      kill (getpid (), SIGCHLD);
-                    }
+                  kill (getpid (), SIGCHLD);
                 }
 #endif /* HAVE_PTYS */
               /* If we can detect process termination, don't consider the process