1 files changed, 4 insertions, 1 deletions

diff --git a/src/fileio.c b/src/fileio.c
index 20b7079700e..b152f0a74e0 100644
--- a/src/fileio.c
+++ b/src/fileio.c
@@ -3870,7 +3870,7 @@ actually used.")
             report_file_error ("Setting file position",
                                Fcons (orig_filename, Qnil));
 
-          total_read = 0;
+          total_read = nread = 0;
           while (total_read < trial)
             {
               nread = emacs_read (fd, buffer + total_read, trial - total_read);
@@ -3905,6 +3905,9 @@ actually used.")
                 giveup_match_end = 1;
               break;
             }
+
+          if (nread == 0)
+            break;
         }
       immediate_quit = 0;