[binutils-gdb] Remove unnecessary null_cleanup

[Tom Tromey <tromey at sourceware dot org>]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=d1a760cbb796b62f18ff6b81a189fd261809ef74

commit d1a760cbb796b62f18ff6b81a189fd261809ef74
Author: Tom Tromey <tom@tromey.com>
Date:   Sat Sep 24 21:14:14 2016 -0600

    Remove unnecessary null_cleanup
    
    This patch removes an unnecessary null_cleanup.
    
    2016-10-12  Tom Tromey  <tom@tromey.com>
    
    	* tracepoint.c (trace_dump_command): Remove unnecessary
    	null_cleanup.

Diff:
---
 gdb/ChangeLog    | 5 +++++
 gdb/tracepoint.c | 4 +---
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 5d83d59..aa3670d 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,10 @@
 2016-10-12  Tom Tromey  <tom@tromey.com>
 
+	* tracepoint.c (trace_dump_command): Remove unnecessary
+	null_cleanup.
+
+2016-10-12  Tom Tromey  <tom@tromey.com>
+
 	* valprint.c (generic_emit_char, count_next_character)
 	(generic_printstr): Update.
 	* charset.c (struct wchar_iterator): Move to charset.h.
diff --git a/gdb/tracepoint.c b/gdb/tracepoint.c
index c89c77e..e5c353c 100644
--- a/gdb/tracepoint.c
+++ b/gdb/tracepoint.c
@@ -3061,11 +3061,9 @@ trace_dump_command (char *args, int from_tty)
   printf_filtered ("Data collected at tracepoint %d, trace frame %d:\n",
 		   tracepoint_number, traceframe_number);
 
-  old_chain = make_cleanup (null_cleanup, NULL);
-
   /* This command only makes sense for the current frame, not the
      selected frame.  */
-  make_cleanup_restore_current_thread ();
+  old_chain = make_cleanup_restore_current_thread ();
   select_frame (get_current_frame ());
 
   actions = all_tracepoint_actions_and_cleanup (loc->owner);