[PATCH 2/8] trace-cmd record: Prevent a memory leak in show_error()

In show_error() the pointer p is used for several functions. At first,
it contain a substring of path.

Then it is replaced by either an allocated string containing the path
to the error log file or the result of read_path(), neither of which
are freed when exiting.

Free p in both case in the exit path.

Fixes a RESOURCE_LEAK error (CWE-772)

Signed-off-by: Jerome Marchand <[email protected]>
---
 tracecmd/trace-record.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tracecmd/trace-record.c b/tracecmd/trace-record.c
index a008cdfd..3c42cdf0 100644
--- a/tracecmd/trace-record.c
+++ b/tracecmd/trace-record.c
@@ -2374,6 +2374,7 @@ static void show_error(const char *file, const char *type)
 
  out:
 	printf("Failed %s of %s\n", type, file);
+	free(p);
 	free(path);
 	return;
 }
-- 
2.47.0