Check if amount > 0 can save gas

[code423n4]

Handle

WatchPug

Vulnerability details

https://github.com/code-423n4/2021-09-wildcredit/blob/main/contracts/LendingPair.sol#L125-L136

function uniClaimDeposit() external {
    (uint amountA, uint amountB) = _uniCollectFees(msg.sender);
    _mintSupplyAmount(tokenA, msg.sender, amountA);
    _mintSupplyAmount(tokenB, msg.sender, amountB);
  }

  // claim & withdraw uniswap fees
  function uniClaimWithdraw() external {
    (uint amountA, uint amountB) = _uniCollectFees(msg.sender);
    _safeTransfer(tokenA, msg.sender, amountA);
    _safeTransfer(tokenB, msg.sender, amountB);
  }

amountA and amountB can be 0, Check if amount > 0 before _safeTransfer can save gas.

[talegift]

Duplicate #82