cmdline: check val value before conversion

diff --git a/cmdline.cc b/cmdline.cc
index 0872606..83407f6 100644 (file)
--- a/cmdline.cc
+++ b/cmdline.cc
@@ -289,11 +289,11 @@ uint64_t parseRLimit(int res, const char* optarg, unsigned long mul) {
                    res, optarg);
        }
        errno = 0;
-       uint64_t val = strtoull(optarg, NULL, 0) * mul;
+       uint64_t val = strtoull(optarg, NULL, 0);
        if (val == ULLONG_MAX && errno != 0) {
                PLOG_F("strtoul('%s', 0)", optarg);
        }
-       return val;
+       return val * mul;
 }
 
 static std::string argFromVec(const std::vector<std::string>& vec, size_t pos) {