From 5f57d4775f1ef692eb8dfe6d2f82cd959038db4d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Henrik=20Rydg=C3=A5rd?= <hrydgard@gmail.com>
Date: Mon, 29 Jun 2020 22:47:34 +0200
Subject: [PATCH] Add some excessive null checks to GameScreen::render(), might
 fix the crash seen in #13057

---
 Core/ELF/ParamSFO.h | 24 +++++++----------------
 UI/GameScreen.cpp   | 47 +++++++++++++++++++++++++--------------------
 2 files changed, 33 insertions(+), 38 deletions(-)

diff --git a/Core/ELF/ParamSFO.h b/Core/ELF/ParamSFO.h
index 940280bac32f..dca5d1b23e99 100644
--- a/Core/ELF/ParamSFO.h
+++ b/Core/ELF/ParamSFO.h
@@ -67,28 +67,18 @@ class ParamSFOData
 	class ValueData
 	{
 	public:
-		ValueType type;
-		int max_size;
+		ValueType type = VT_INT;
+		int max_size = 0;
 		std::string s_value;
-		int i_value;
+		int i_value = 0;
 
-		u8* u_value;
-		unsigned int u_size;
+		u8* u_value = nullptr;
+		unsigned int u_size = 0;
 
 		void SetData(const u8* data, int size);
 
-		ValueData()
-		{
-			u_value = 0;
-			u_size = 0;
-			type = VT_INT;
-			max_size = 0;
-			i_value = 0;
-		}
-
-		~ValueData()
-		{
-			if(u_value)
+		~ValueData() {
+			if (u_value)
 				delete[] u_value;
 		}
 	};
diff --git a/UI/GameScreen.cpp b/UI/GameScreen.cpp
index f584f45faa87..1c900beecdd1 100644
--- a/UI/GameScreen.cpp
+++ b/UI/GameScreen.cpp
@@ -47,8 +47,9 @@ GameScreen::~GameScreen() {
 void GameScreen::CreateViews() {
 	std::shared_ptr<GameInfo> info = g_gameInfoCache->GetInfo(NULL, gamePath_, GAMEINFO_WANTBG | GAMEINFO_WANTSIZE);
 
-	if (info && !info->id.empty())
+	if (info && !info->id.empty()) {
 		saveDirs = info->GetSaveDataDirectories(); // Get's very heavy, let's not do it in update()
+	}
 
 	auto di = GetI18NCategory("Dialog");
 	auto ga = GetI18NCategory("Game");
@@ -119,9 +120,7 @@ void GameScreen::CreateViews() {
 	rightColumnItems->Add(btnDeleteSaveData_)->OnClick.Handle(this, &GameScreen::OnDeleteSaveData);
 	btnDeleteSaveData_->SetVisibility(V_GONE);
 
-	if (info && !info->pending) {
-		otherChoices_.clear();
-	}
+	otherChoices_.clear();
 
 	rightColumnItems->Add(AddOtherChoice(new Choice(ga->T("Delete Game"))))->OnClick.Handle(this, &GameScreen::OnDeleteGame);
 	if (host->CanCreateShortcut()) {
@@ -200,29 +199,35 @@ void GameScreen::render() {
 
 	if (info->gameSize) {
 		char temp[256];
-		snprintf(temp, sizeof(temp), "%s: %1.1f %s", ga->T("Game"), (float) (info->gameSize) / 1024.f / 1024.f, ga->T("MB"));
-		tvGameSize_->SetText(temp);
-		snprintf(temp, sizeof(temp), "%s: %1.2f %s", ga->T("SaveData"), (float) (info->saveDataSize) / 1024.f / 1024.f, ga->T("MB"));
-		tvSaveDataSize_->SetText(temp);
-		if (info->installDataSize > 0) {
+		if (tvGameSize_) {
+			snprintf(temp, sizeof(temp), "%s: %1.1f %s", ga->T("Game"), (float)(info->gameSize) / 1024.f / 1024.f, ga->T("MB"));
+			tvGameSize_->SetText(temp);
+		}
+		if (tvSaveDataSize_) {
+			snprintf(temp, sizeof(temp), "%s: %1.2f %s", ga->T("SaveData"), (float)(info->saveDataSize) / 1024.f / 1024.f, ga->T("MB"));
+			tvSaveDataSize_->SetText(temp);
+		}
+		if (info->installDataSize > 0 && tvInstallDataSize_) {
 			snprintf(temp, sizeof(temp), "%s: %1.2f %s", ga->T("InstallData"), (float) (info->installDataSize) / 1024.f / 1024.f, ga->T("MB"));
 			tvInstallDataSize_->SetText(temp);
 			tvInstallDataSize_->SetVisibility(UI::V_VISIBLE);
 		}
 	}
 
-	if (info->region >= 0 && info->region < GAMEREGION_MAX && info->region != GAMEREGION_OTHER) {
-		static const char *regionNames[GAMEREGION_MAX] = {
-			"Japan",
-			"USA",
-			"Europe",
-			"Hong Kong",
-			"Asia",
-			"Korea"
-		};
-		tvRegion_->SetText(ga->T(regionNames[info->region]));
-	} else if (info->region > GAMEREGION_MAX){
-		tvRegion_->SetText(ga->T("Homebrew"));
+	if (tvRegion_) {
+		if (info->region >= 0 && info->region < GAMEREGION_MAX && info->region != GAMEREGION_OTHER) {
+			static const char *regionNames[GAMEREGION_MAX] = {
+				"Japan",
+				"USA",
+				"Europe",
+				"Hong Kong",
+				"Asia",
+				"Korea"
+			};
+			tvRegion_->SetText(ga->T(regionNames[info->region]));
+		} else if (info->region > GAMEREGION_MAX) {
+			tvRegion_->SetText(ga->T("Homebrew"));
+		}
 	}
 
 	if (!info->id.empty()) {