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authorArnaldo Carvalho de Melo <acme@redhat.com>2019-07-04 12:13:46 -0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2019-07-09 10:13:27 -0300
commite56fbc9dc79ce0fdc49ffadd062214ddd02f65b6 (patch)
treeb108e9b4fcb4cc1be29778253097089884b00f23 /tools/perf/util/dso.c
parentd8f9da240495b50766239410f9b0c715ca506a67 (diff)
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 <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lkml.kernel.org/n/tip-deh17ub44atyox3j90e6rksu@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/dso.c')
-rw-r--r--tools/perf/util/dso.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c
index ebacf07fc9ee..ebc9d46c15a7 100644
--- a/tools/perf/util/dso.c
+++ b/tools/perf/util/dso.c
@@ -434,7 +434,7 @@ static void dso__list_add(struct dso *dso)
static void dso__list_del(struct dso *dso)
{
- list_del(&dso->data.open_entry);
+ list_del_init(&dso->data.open_entry);
WARN_ONCE(dso__data_open_cnt <= 0,
"DSO data fd counter out of bounds.");
dso__data_open_cnt--;