(full_filename_): Don't leak upon failed realloc.

diff --git a/src/remove.c b/src/remove.c
index 4672e8a93324f6d89d71dd49ad321547b504b474..d9fb21796e196d5fabda5b5213dd4784ed2ca641 100644 (file)
--- a/src/remove.c
+++ b/src/remove.c
@@ -290,10 +290,10 @@ full_filename_ (Dirstack_state const *ds, const char *filename)
         error involving a file name to be expanded here wouldn't ever
         be issued.  Use realloc and fall back on using a static buffer
         if memory allocation fails.  */
-      buf = realloc (buf, n_bytes_needed);
+      char *new_buf = realloc (buf, n_bytes_needed);
       n_allocated = n_bytes_needed;
 
-      if (buf == NULL)
+      if (new_buf == NULL)
        {
 #define SBUF_SIZE 512
 #define ELLIPSES_PREFIX "[...]"
@@ -302,6 +302,7 @@ full_filename_ (Dirstack_state const *ds, const char *filename)
          size_t len;
          char *p;
 
+         free (buf);
          len = right_justify (static_buf, SBUF_SIZE, filename,
                               filename_len + 1, &p, &truncated);
          right_justify (static_buf, len, dir_name, dir_len, &p, &truncated);
@@ -312,6 +313,8 @@ full_filename_ (Dirstack_state const *ds, const char *filename)
            }
          return p;
        }
+
+      buf = new_buf;
     }
 
   if (filename_len == 1 && *filename == '.' && dir_len)