[libunwind] [patch] Close map on error

[Ed Connell]

This will keep libunwind from leaking all available maps over time.

Cheers
Ed

diff -u -r libunwind-0.97/src/ptrace/_UPT_get_dyn_info_list_addr.c 
libunwind-0.97.edconn/src/ptrace/_UPT_get_dyn_info_list_addr.c
--- libunwind-0.97/src/ptrace/_UPT_get_dyn_info_list_addr.c     2004-06-18 
11:15:31.000000000 -0400
+++ libunwind-0.97.edconn/src/ptrace/_UPT_get_dyn_info_list_addr.c      
2004-06-18 12:26:57.000000000 -0400
@@ -54,8 +54,10 @@
          ui->di_cache.start_ip = ui->di_cache.end_ip = 0;
        }
 
-      if (elf_map_image (&ui->ei, path) < 0)
+      if (elf_map_image (&ui->ei, path) < 0) {
+       maps_close (&mi);
        return -UNW_ENOINFO;
+      }
 
       Debug (16, "checking object %s\n", path);