From: "Steven Rostedt (Google)" <rostedt@xxxxxxxxxxx>
The tepdata_get_latency() function could exit without releasing the
stream->input_mutex, which would cause a lockup later on.
Fixes: 836ce858246b7 ("kernel-shark: Add stream interface for trace-cmd data")
Signed-off-by: Steven Rostedt (Google) <rostedt@xxxxxxxxxxx>
---
src/libkshark-tepdata.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/src/libkshark-tepdata.c b/src/libkshark-tepdata.c
index e9244b0761bb..08aca0989a59 100644
--- a/src/libkshark-tepdata.c
+++ b/src/libkshark-tepdata.c
@@ -793,8 +793,10 @@ static char *tepdata_get_latency(struct kshark_data_stream *stream,
record = tracecmd_read_at(kshark_get_tep_input(stream), entry->offset, NULL);
- if (!record)
+ if (!record) {
+ pthread_mutex_unlock(&stream->input_mutex);
return NULL;
+ }
trace_seq_reset(&seq);
tep_print_event(kshark_get_tep(stream), &seq, record,
--
2.35.1
|