perf thread: Add reference count checking

[linux-2.6-microblaze.git] / tools / perf / ui / hist.c

diff --git a/tools/perf/ui/hist.c b/tools/perf/ui/hist.c
index f164bd2..2bf959d 100644 (file)
--- a/tools/perf/ui/hist.c
+++ b/tools/perf/ui/hist.c
@@ -11,6 +11,7 @@
 #include "../util/sort.h"
 #include "../util/evsel.h"
 #include "../util/evlist.h"
+#include "../util/thread.h"
 #include "../util/util.h"
 
 /* hist period print (hpp) functions */
@@ -274,7 +275,9 @@ static int __hpp__sort_acc(struct hist_entry *a, struct hist_entry *b,
                if (ret)
                        return ret;
 
-               if (a->thread != b->thread || !hist_entry__has_callchains(a) || !symbol_conf.use_callchain)
+               if ((a->thread == NULL ? NULL : RC_CHK_ACCESS(a->thread)) !=
+                   (b->thread == NULL ? NULL : RC_CHK_ACCESS(b->thread)) ||
+                   !hist_entry__has_callchains(a) || !symbol_conf.use_callchain)
                        return 0;
 
                ret = b->callchain->max_depth - a->callchain->max_depth;