From c178bd2d25a47e66a8307295e3e420b442f14037 Mon Sep 17 00:00:00 2001
From: Andrew Kitchen <akitchen@gmail.com>
Date: Tue, 28 Nov 2017 14:51:30 -0800
Subject: [darwin] Fixes CGImageRef leak when creating a map snapshot (#10585)

---
 platform/darwin/src/MGLMapSnapshotter.mm | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/platform/darwin/src/MGLMapSnapshotter.mm b/platform/darwin/src/MGLMapSnapshotter.mm
index dea93eba34..346666cf80 100644
--- a/platform/darwin/src/MGLMapSnapshotter.mm
+++ b/platform/darwin/src/MGLMapSnapshotter.mm
@@ -321,14 +321,18 @@ const CGFloat MGLSnapshotterMinimumPixelSize = 64;
     
     CIContext *ctx = [CIContext contextWithOptions:nil];
     CGImageRef cgimg = [ctx createCGImage:blurredImage fromRect:[backgroundImage extent]];
+    MGLImage *image;
     
 #if TARGET_OS_IPHONE
     
-    return [UIImage imageWithCGImage:cgimg];
+    image = [UIImage imageWithCGImage:cgimg];
 #else
     
-    return [[NSImage alloc] initWithCGImage:cgimg size:[backgroundImage extent].size];
+    image = [[NSImage alloc] initWithCGImage:cgimg size:[backgroundImage extent].size];
 #endif
+
+    CGImageRelease(cgimg);
+    return image;
 }
 
 - (void)cancel
-- 
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