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perf thread: Allow deletion of a thread with no map groups

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It needs to be possible to call thread__delete() on a thread with no map
groups.

This is needed for a subsequent patch which deletes a thread on the
error path before map groups have been attached.

Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1405495184-20441-2-git-send-email-adrian.hunter@intel.com
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Adrian Hunter 2014-07-16 10:19:43 +03:00 committed by Arnaldo Carvalho de Melo
parent 29ce36121e
commit 9608b84e4d
1 changed files with 4 additions and 2 deletions
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6
tools/perf/util/thread.c
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@ -60,8 +60,10 @@ void thread__delete(struct thread *thread)
{
struct comm *comm, *tmp;
map_groups__put(thread->mg);
thread->mg = NULL;
if (thread->mg) {
map_groups__put(thread->mg);
thread->mg = NULL;
}
list_for_each_entry_safe(comm, tmp, &thread->comm_list, list) {
list_del(&comm->list);
comm__free(comm);