fix reading uninitialized values

diff --git a/ext/gmp/gmp.c b/ext/gmp/gmp.c
index 7056fd4b2ef2003a261b51ae8e502834cfa7e8c6..44995e5e5a43de0564798020f8f11d2d70272657 100644 (file)
--- a/ext/gmp/gmp.c
+++ b/ext/gmp/gmp.c
@@ -1064,8 +1064,8 @@ ZEND_FUNCTION(gmp_pow)
                mpz_ui_pow_ui(*gmpnum_result, Z_LVAL_PP(base_arg), exp);
        } else {
                mpz_pow_ui(*gmpnum_result, *gmpnum_base, exp);
+               FREE_GMP_TEMP(temp_base);
        }
-       FREE_GMP_TEMP(temp_base);
        ZEND_REGISTER_RESOURCE(return_value, gmpnum_result, le_gmp);
 }
 /* }}} */
@@ -1098,7 +1098,9 @@ ZEND_FUNCTION(gmp_powm)
 
        if (!mpz_cmp_ui(*gmpnum_mod, 0)) {
                FREE_GMP_TEMP(temp_base);
-               FREE_GMP_TEMP(temp_exp);
+               if (use_ui) {
+                       FREE_GMP_TEMP(temp_exp);
+               }
                FREE_GMP_TEMP(temp_mod);
                RETURN_FALSE;
        }
@@ -1108,10 +1110,10 @@ ZEND_FUNCTION(gmp_powm)
                mpz_powm_ui(*gmpnum_result, *gmpnum_base, (unsigned long)Z_LVAL_PP(exp_arg), *gmpnum_mod);
        } else {
                mpz_powm(*gmpnum_result, *gmpnum_base, *gmpnum_exp, *gmpnum_mod);
+               FREE_GMP_TEMP(temp_exp);
        }
 
        FREE_GMP_TEMP(temp_base);
-       FREE_GMP_TEMP(temp_exp);
        FREE_GMP_TEMP(temp_mod);
 
        ZEND_REGISTER_RESOURCE(return_value, gmpnum_result, le_gmp);