From cfc01fa7422e5871197f42eb00bb3c80e37f9f61 Mon Sep 17 00:00:00 2001
From: "Richard M. Stallman" <rms@gnu.org>
Date: Mon, 24 May 1999 09:19:06 +0000
Subject: [PATCH] (lock_if_free): After deleting a stale lock, try again to
 lock the file.

---
 src/filelock.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/filelock.c b/src/filelock.c
index f5e4fb85966..2f880d10d2d 100644
--- a/src/filelock.c
+++ b/src/filelock.c
@@ -521,7 +521,7 @@ lock_if_free (clasher, lfname)
      lock_info_type *clasher;
      register char *lfname; 
 {
-  if (lock_file_1 (lfname, 0) == 0)
+  while (lock_file_1 (lfname, 0) == 0)
     {
       int locker;
 
@@ -537,7 +537,7 @@ lock_if_free (clasher, lfname)
       else if (locker == 1)
         return 1;  /* Someone else has it.  */
 
-      return -1; /* Something's wrong.  */
+      /* We deleted a stale lock; try again to lock the file.  */
     }
   return 0;
 }