Patch 7.4.1849
Problem:    Still trying to read from channel that is going to be closed.
            (Ramel Eshed)
Solution:   Check if ch_to_be_closed is set.
Files:      src/channel.c


*** ../vim-7.4.1848/src/channel.c       2016-05-25 21:48:07.397807422 +0200
--- src/channel.c       2016-05-27 19:53:16.391525211 +0200
***************
*** 2893,2898 ****
--- 2893,2902 ----
      sock_T            fd;
      int                       use_socket = FALSE;
  
+     /* If we detected a read error don't try reading again. */
+     if (channel->ch_to_be_closed)
+       return;
+ 
      fd = channel->ch_part[part].ch_fd;
      if (fd == INVALID_FD)
      {
***************
*** 3193,3198 ****
--- 3197,3206 ----
  
      for (channel = first_channel; channel != NULL; channel = channel->ch_next)
      {
+       /* If we detected a read error don't try reading again. */
+       if (channel->ch_to_be_closed)
+           continue;
+ 
        /* check the socket and pipes */
        for (part = PART_SOCK; part <= PART_ERR; ++part)
        {
*** ../vim-7.4.1848/src/version.c       2016-05-26 22:09:56.088600919 +0200
--- src/version.c       2016-05-27 19:54:47.207523962 +0200
***************
*** 755,756 ****
--- 755,758 ----
  {   /* Add new patch number below this line */
+ /**/
+     1849,
  /**/

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