[Bugfix] [2.6.35-rc3-tip] perf build failure on latest tip.

[Srikar Dronamraju]

When compiling perf on latest tip/master
I see the following error

cc1: warnings being treated as errors
util/newt.c: In function â??hist_entry__tui_annotateâ??:
util/newt.c:764: warning: â??retâ?? is used uninitialized in this function
make: *** [util/newt.o] Error 1

I think the problem was introduced by commit 
13f499f076c67675e6e3022973729b5d906a84e9

Below is a patch that fixes the problem.

Signed-off-by: Srikar Dronamraju <srikar@xxxxxxxxxxxxxxxxxx>
---

diff --git a/tools/perf/util/newt.c b/tools/perf/util/newt.c
index 89c52fc..06f248f 100644
--- a/tools/perf/util/newt.c
+++ b/tools/perf/util/newt.c
@@ -753,7 +753,7 @@ int hist_entry__tui_annotate(struct hist_entry *self)
 
 	browser.width += 18; /* Percentage */
 	ui_browser__show(&browser, self->ms.sym->name);
-	ui_browser__run(&browser, &es);
+	ret = ui_browser__run(&browser, &es);
 	newtFormDestroy(browser.form);
 	newtPopWindow();
 	list_for_each_entry_safe(pos, n, &head, node) {
--
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