MAGETWO-90927: Fix warning with count function on product save

Author: admanesachin

app/code/Magento/Catalog/Controller/Adminhtml/Product/Save.php

@@ -194,6 +194,7 @@ public function execute()
      */
     private function handleImageRemoveError($postData, $productId)
     {
+        
         if (isset($postData['product']['media_gallery']['images'])) {
             $removedImagesAmount = 0;
             foreach ($postData['product']['media_gallery']['images'] as $image) {
@@ -204,10 +205,12 @@ private function handleImageRemoveError($postData, $productId)
             if ($removedImagesAmount) {
                 $expectedImagesAmount = count($postData['product']['media_gallery']['images']) - $removedImagesAmount;
                 $product = $this->productRepository->getById($productId);
-                if ($expectedImagesAmount != count($product->getMediaGallery('images'))) {
-                    $this->messageManager->addNoticeMessage(
-                        __('The image cannot be removed as it has been assigned to the other image role')
-                    );
+                if (is_array($product->getMediaGallery('images'))) {
+                    if ($expectedImagesAmount != count($product->getMediaGallery('images'))) {
+                        $this->messageManager->addNoticeMessage(
+                            __('The image cannot be removed as it has been assigned to the other image role')
+                        );
+                    }
                 }
             }
         }