From 5e26dbfdc7626ce4398ed5adfbf7fe58e9e4f7ee Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Emilio=20Cobos=20=C3=81lvarez?= <emilio@crisal.io>
Date: Tue, 1 Oct 2024 20:31:41 +0000
Subject: [PATCH] Bug 1921797 - Check for degenerate ratio in nsCocoaUtis.
 r=mac-reviewers,mstange,bradwerth a=RyanVM

This is the straight-forward, uncontroversial fix, that can be uplifted.

Differential Revision: https://phabricator.services.mozilla.com/D224211
---
 widget/cocoa/nsCocoaUtils.mm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/widget/cocoa/nsCocoaUtils.mm b/widget/cocoa/nsCocoaUtils.mm
index 769eb05a85fd..5bb487f7f725 100644
--- a/widget/cocoa/nsCocoaUtils.mm
+++ b/widget/cocoa/nsCocoaUtils.mm
@@ -523,7 +523,7 @@ nsresult nsCocoaUtils::CreateNSImageFromImageContainer(
   {
     const bool gotWidth = NS_SUCCEEDED(aImage->GetWidth(&width));
     const bool gotHeight = NS_SUCCEEDED(aImage->GetHeight(&height));
-    if (auto ratio = aImage->GetIntrinsicRatio()) {
+    if (auto ratio = aImage->GetIntrinsicRatio(); ratio && *ratio) {
       if (gotWidth != gotHeight) {
         if (gotWidth) {
           height = ratio->Inverted().ApplyTo(width);