[PATCH 07/38] trace-cmd lib: prevent a memory leak in regex_event_buf()

["Jerome Marchand" <jmarchan@xxxxxxxxxx>]

Free buf before exiting if strtok fails.

Fixes a RESOURCE_LEAK error (CWE-772)

Signed-off-by: Jerome Marchand <jmarchan@xxxxxxxxxx>
---
 lib/trace-cmd/trace-input.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/trace-cmd/trace-input.c b/lib/trace-cmd/trace-input.c
index 2cf0d1c1..3284dbd4 100644
--- a/lib/trace-cmd/trace-input.c
+++ b/lib/trace-cmd/trace-input.c
@@ -666,6 +666,7 @@ static int regex_event_buf(const char *file, int size, regex_t *epreg)
 	line = strtok(buf, "\n");
 	if (!line) {
 		tracecmd_warning("No newline found in '%s'", buf);
+		free(buf);
 		return 0;
 	}
 	/* skip name if it is there */
-- 
2.44.0