[PATCH perf/core v11 02/23] perf-probe: Fix to add NULL check for strndup

[Masami Hiramatsu]

Fix to add a NULL check for strndup when parsing
probe trace command.

Signed-off-by: Masami Hiramatsu <mhiramat@xxxxxxxxxx>
---
 Changes in v10:
  - Splited from "perf probe: Allow wildcard for cached events"
---
 tools/perf/util/probe-event.c |    4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index 74401a2..7ae3dd1 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -1603,6 +1603,10 @@ int parse_probe_trace_command(const char *cmd, struct probe_trace_event *tev)
 	p = strchr(argv[1], ':');
 	if (p) {
 		tp->module = strndup(argv[1], p - argv[1]);
+		if (!tp->module) {
+			ret = -ENOMEM;
+			goto out;
+		}
 		p++;
 	} else
 		p = argv[1];