Commit-ID: c481f9301183260a78e55fa4d70d977b68c81846
Gitweb: http://git.kernel.org/tip/c481f9301183260a78e55fa4d70d977b68c81846
Author: Namhyung Kim <namhyung@xxxxxxxxxx>
AuthorDate: Tue, 22 Apr 2014 13:56:11 +0900
Committer: Jiri Olsa <jolsa@xxxxxxxxxx>
CommitDate: Thu, 24 Apr 2014 16:33:08 +0200
perf ui/tui: Fix off-by-one in hist_browser__update_nr_entries()
The nr_entries variable is increased inside the loop in the function
but it always count the first entry regardless of it's filtered or
not; caused an off-by-one error.
It'd become a problem especially there's no entry at all - it'd get a
segfault during referencing a NULL pointer.
Signed-off-by: Namhyung Kim <namhyung@xxxxxxxxxx>
Link: http://lkml.kernel.org/r/1398327843-31845-9-git-send-email-namhyung@xxxxxxxxxx
Signed-off-by: Jiri Olsa <jolsa@xxxxxxxxxx>
---
tools/perf/ui/browsers/hists.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index 4d41698..311226e 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -1348,10 +1348,10 @@ static void hist_browser__update_pcnt_entries(struct hist_browser *hb)
u64 nr_entries = 0;
struct rb_node *nd = rb_first(&hb->hists->entries);
- while (nd) {
+ while ((nd = hists__filter_entries(nd, hb->hists,
+ hb->min_pcnt)) != NULL) {
nr_entries++;
- nd = hists__filter_entries(rb_next(nd), hb->hists,
- hb->min_pcnt);
+ nd = rb_next(nd);
}
hb->nr_pcnt_entries = nr_entries;
--
To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
|