Fixed Coverity issues

src/log.cpp

@@ -91,9 +91,13 @@ public:
 		}
 	}
 
-	FORCEINLINE ~Worker()
+	~Worker()
 	{
-		stop();
+		try {
+			stop();
+		}
+		catch (...) {
+		}
 	}
 
 	FORCEINLINE void stop()

src/wallet.cpp

@@ -79,7 +79,7 @@ static_assert(rev_alphabet.num_symbols == 58, "Check alphabet");
 
 namespace p2pool {
 
-Wallet::Wallet(const char* address)
+Wallet::Wallet(const char* address) : m_prefix(0), m_checksum(0), m_type(NetworkType::Invalid)
 {
 	decode(address);
 }