1 files changed, 5 insertions, 8 deletions
diff --git a/js/src/builtin/temporal/ToString.cpp b/js/src/builtin/temporal/ToString.cpp
index c789c5e95c..e13ad8eb03 100644
--- a/js/src/builtin/temporal/ToString.cpp
+++ b/js/src/builtin/temporal/ToString.cpp
@@ -169,7 +169,7 @@ static void FormatFractionalSeconds(TemporalStringBuilder& result,
     result.append('.');
 
     // Steps 1.b-c.
-    uint32_t k = 100'000'000;
+    int32_t k = 100'000'000;
     do {
       result.append(char('0' + (subSecondNanoseconds / k)));
       subSecondNanoseconds %= k;
@@ -186,7 +186,7 @@ static void FormatFractionalSeconds(TemporalStringBuilder& result,
     result.append('.');
 
     // Steps 2.b-c.
-    uint32_t k = 100'000'000;
+    int32_t k = 100'000'000;
     for (uint8_t i = 0; i < p; i++) {
       result.append(char('0' + (subSecondNanoseconds / k)));
       subSecondNanoseconds %= k;
@@ -274,7 +274,7 @@ static int32_t RoundNanosecondsToMinutes(int64_t offsetNanoseconds) {
   if (std::abs(remainder * 2) >= increment) {
     quotient += (offsetNanoseconds > 0 ? 1 : -1);
   }
-  return quotient;
+  return int32_t(quotient);
 }
 
 /**
@@ -636,11 +636,8 @@ JSString* js::temporal::TemporalZonedDateTimeToString(
   // Steps 1-3. (Not applicable in our implementation.)
 
   // Step 4.
-  Instant ns;
-  if (!RoundTemporalInstant(cx, zonedDateTime.instant(), increment, unit,
-                            roundingMode, &ns)) {
-    return nullptr;
-  }
+  auto ns = RoundTemporalInstant(zonedDateTime.instant(), increment, unit,
+                                 roundingMode);
 
   // Step 5.
   auto timeZone = zonedDateTime.timeZone();