timeout in mmo_get_symbols

[Alan Modra <amodra@gmail.com>]

Fix mmo_get_byte to return a fail-safe value, not just on the first
call with a read error but on subsequent calls too.

	* mmo.c (mmo_get_byte): Return the fail-safe value on every
	call after a read error.

diff --git a/bfd/mmo.c b/bfd/mmo.c
index 30af28c8bdc..80b5cb6b4ca 100644
--- a/bfd/mmo.c
+++ b/bfd/mmo.c
@@ -1180,15 +1180,14 @@ mmo_get_byte (bfd *abfd)
 
   if (abfd->tdata.mmo_data->byte_no == 0)
     {
-      if (! abfd->tdata.mmo_data->have_error
+      if (!abfd->tdata.mmo_data->have_error
 	  && bfd_bread (abfd->tdata.mmo_data->buf, 4, abfd) != 4)
-	{
-	  abfd->tdata.mmo_data->have_error = true;
+	abfd->tdata.mmo_data->have_error = true;
 
-	  /* A value somewhat safe against tripping on some inconsistency
-	     when mopping up after this error.  */
-	  return 128;
-	}
+      /* A value somewhat safe against tripping on some inconsistency
+	 when mopping up after this error.  */
+      if (abfd->tdata.mmo_data->have_error)
+	return 128;
     }
 
   retval = abfd->tdata.mmo_data->buf[abfd->tdata.mmo_data->byte_no];

-- 
Alan Modra
Australia Development Lab, IBM