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-rw-r--r--tools/perf/util/comm.c19
-rw-r--r--tools/perf/util/comm.h2
-rw-r--r--tools/perf/util/thread.c5
3 files changed, 15 insertions, 11 deletions
diff --git a/tools/perf/util/comm.c b/tools/perf/util/comm.c
index 67d1e404c0cb..f9e777629e21 100644
--- a/tools/perf/util/comm.c
+++ b/tools/perf/util/comm.c
@@ -94,19 +94,20 @@ struct comm *comm__new(const char *str, u64 timestamp)
return comm;
}
-void comm__override(struct comm *comm, const char *str, u64 timestamp)
+int comm__override(struct comm *comm, const char *str, u64 timestamp)
{
- struct comm_str *old = comm->comm_str;
+ struct comm_str *new, *old = comm->comm_str;
- comm->comm_str = comm_str__findnew(str, &comm_str_root);
- if (!comm->comm_str) {
- comm->comm_str = old;
- return;
- }
+ new = comm_str__findnew(str, &comm_str_root);
+ if (!new)
+ return -ENOMEM;
- comm->start = timestamp;
- comm_str__get(comm->comm_str);
+ comm_str__get(new);
comm_str__put(old);
+ comm->comm_str = new;
+ comm->start = timestamp;
+
+ return 0;
}
void comm__free(struct comm *comm)
diff --git a/tools/perf/util/comm.h b/tools/perf/util/comm.h
index 7a86e5656710..fac5bd51befc 100644
--- a/tools/perf/util/comm.h
+++ b/tools/perf/util/comm.h
@@ -16,6 +16,6 @@ struct comm {
void comm__free(struct comm *comm);
struct comm *comm__new(const char *str, u64 timestamp);
const char *comm__str(const struct comm *comm);
-void comm__override(struct comm *comm, const char *str, u64 timestamp);
+int comm__override(struct comm *comm, const char *str, u64 timestamp);
#endif /* __PERF_COMM_H */
diff --git a/tools/perf/util/thread.c b/tools/perf/util/thread.c
index e3948612543e..0358882c8910 100644
--- a/tools/perf/util/thread.c
+++ b/tools/perf/util/thread.c
@@ -66,10 +66,13 @@ struct comm *thread__comm(const struct thread *thread)
int thread__set_comm(struct thread *thread, const char *str, u64 timestamp)
{
struct comm *new, *curr = thread__comm(thread);
+ int err;
/* Override latest entry if it had no specific time coverage */
if (!curr->start) {
- comm__override(curr, str, timestamp);
+ err = comm__override(curr, str, timestamp);
+ if (err)
+ return err;
} else {
new = comm__new(str, timestamp);
if (!new)