From e56fbc9dc79ce0fdc49ffadd062214ddd02f65b6 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Thu, 4 Jul 2019 12:13:46 -0300 Subject: perf tools: Use list_del_init() more thorougly To allow for destructors to check if they're operating on a object still in a list, and to avoid going from use after free list entries into still valid, or even also other already removed from list entries. Cc: Adrian Hunter Cc: Jiri Olsa Cc: Namhyung Kim Link: https://lkml.kernel.org/n/tip-deh17ub44atyox3j90e6rksu@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/hist.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'tools/perf/util/hist.c') diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c index 9b0ee0ef0f44..f24fd1954f6c 100644 --- a/tools/perf/util/hist.c +++ b/tools/perf/util/hist.c @@ -2741,10 +2741,10 @@ static void hists_evsel__exit(struct perf_evsel *evsel) list_for_each_entry_safe(node, tmp, &hists->hpp_formats, list) { perf_hpp_list__for_each_format_safe(&node->hpp, fmt, pos) { - list_del(&fmt->list); + list_del_init(&fmt->list); free(fmt); } - list_del(&node->list); + list_del_init(&node->list); free(node); } } -- cgit v1.2.3