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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/thread.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/thread.c')
-rw-r--r--tools/perf/util/thread.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/tools/perf/util/thread.c b/tools/perf/util/thread.c
index bbfb9c767f5f..873ab505ca80 100644
--- a/tools/perf/util/thread.c
+++ b/tools/perf/util/thread.c
@@ -93,14 +93,14 @@ void thread__delete(struct thread *thread)
down_write(&thread->namespaces_lock);
list_for_each_entry_safe(namespaces, tmp_namespaces,
&thread->namespaces_list, list) {
- list_del(&namespaces->list);
+ list_del_init(&namespaces->list);
namespaces__free(namespaces);
}
up_write(&thread->namespaces_lock);
down_write(&thread->comm_lock);
list_for_each_entry_safe(comm, tmp_comm, &thread->comm_list, list) {
- list_del(&comm->list);
+ list_del_init(&comm->list);
comm__free(comm);
}
up_write(&thread->comm_lock);