(wait_reading_process_input): Initialize total_read.

Check for read_process_output giving back EIO.

1 files changed, 9 insertions, 2 deletions

diff --git a/src/process.c b/src/process.c
index 065dacb4866..5cb882c1597 100644
--- a/src/process.c
+++ b/src/process.c
@@ -2337,7 +2337,7 @@ wait_reading_process_input (time_limit, microsecs, read_kbd, do_display)
       if (wait_proc != 0
           && ! EQ (wait_proc->status, Qrun))
         {
-          int nread, total_nread;
+          int nread, total_nread = 0;
 
           clear_waiting_for_input ();
           XSETPROCESS (proc, wait_proc);
@@ -2346,7 +2346,14 @@ wait_reading_process_input (time_limit, microsecs, read_kbd, do_display)
           while (XINT (wait_proc->infd) >= 0
                  && (nread
                      = read_process_output (proc, XINT (wait_proc->infd))))
-            total_nread += nread;
+            {
+              if (0 < nread) 
+                total_nread += nread;
+#ifdef EIO
+              else if (nread == -1 && EIO == errno)
+                break;
+#endif
+            }
           if (total_nread > 0 && do_display)
             redisplay_preserve_echo_area ();