[nft PATCH] trace: Fix for memleak in trace_alloc_list() error path

[Phil Sutter <phil@xxxxxx>]

The allocated 'list_expr' may leak.

Fixes: cfd768615235b ("src: add conntrack information to trace monitor mode")
Signed-off-by: Phil Sutter <phil@xxxxxx>
---
 src/trace.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/trace.c b/src/trace.c
index b270951025b88..47f4c2159421e 100644
--- a/src/trace.c
+++ b/src/trace.c
@@ -258,6 +258,7 @@ static struct expr *trace_alloc_list(const struct datatype *dtype,
 	v = mpz_get_uint32(value);
 	if (v == 0) {
 		mpz_clear(value);
+		expr_free(list_expr);
 		return NULL;
 	}
 
-- 
2.51.0