removed redundent free stmts

traffic-mirroring/mirroring.c

@@ -919,13 +919,13 @@ int main(int argc, char **argv)
                     log_err("Error converting source address to network "
                             "address %s",
                             src_addr[i].addr);
+		    free(src_key);
                     return (EXIT_FAILURE);
                 }
                 if (bpf_map_update_elem(src_fd, src_key, &src_val, 0) < 0) {
                     log_err("Failed to update source endpoint bpf map");
                     perror("ERROR: bpf_map_update_elem");
                     ret = EXIT_FAILURE;
-                    free(src_key);
                 }
             }
             free(src_key);
@@ -958,14 +958,13 @@ int main(int argc, char **argv)
                     log_err("Failed to convert destination address to network "
                             "address %s",
                             dst_addr[i].addr);
-                    ret = EXIT_FAILURE;
-                    free(dst_key);
+		    free(dst_key);
+                    return (EXIT_FAILURE);
                 }
                 if (bpf_map_update_elem(dst_fd, dst_key, &dst_val, 0) < 0) {
                     log_err("Failed to update destination endpoint bpf map");
                     perror("ERROR: bpf_map_update_elem");
                     ret = EXIT_FAILURE;
-                    free(dst_key);
                 }
             }
             free(dst_key);