Fixed small memory leak in Pass::call()

diff --git a/kernel/register.cc b/kernel/register.cc
index 3257096646f9ccc483ec03f91add8e08daaf395d..ee14ffbad7996bc594ee5e21b1dacd5a2115e805 100644 (file)
--- a/kernel/register.cc
+++ b/kernel/register.cc
@@ -133,8 +133,10 @@ void Pass::call(RTLIL::Design *design, std::string command)
        std::vector<std::string> args;
        char *s = strdup(command.c_str()), *sstart = s, *saveptr;
        s += strspn(s, " \t\r\n");
-       if (*s == 0 || *s == '#')
+       if (*s == 0 || *s == '#') {
+               free(sstart);
                return;
+       }
        if (*s == '!') {
                for (s++; *s == ' ' || *s == '\t'; s++) { }
                char *p = s + strlen(s) - 1;
@@ -144,6 +146,7 @@ void Pass::call(RTLIL::Design *design, std::string command)
                int retCode = system(s);
                if (retCode != 0)
                        log_cmd_error("Shell command returned error code %d.\n", retCode);
+               free(sstart);
                return;
        }
        for (char *p = strtok_r(s, " \t\r\n", &saveptr); p; p = strtok_r(NULL, " \t\r\n", &saveptr)) {