fix: check morpho zero address

src/SpeedJumpIrm.sol

@@ -67,6 +67,7 @@ contract AdaptativeCurveIRM is IIrm {
         uint256 targetUtilization,
         uint256 initialBaseRate
     ) {
+        require(morpho != address(0), ErrorsLib.ZERO_ADDRESS);
         require(curveSteepness <= uint256(type(int256).max), ErrorsLib.INPUT_TOO_LARGE);
         require(curveSteepness >= WAD, ErrorsLib.INPUT_TOO_SMALL);
         require(adjustmentSpeed <= uint256(type(int256).max), ErrorsLib.INPUT_TOO_LARGE);

src/libraries/ErrorsLib.sol

@@ -11,6 +11,9 @@ library ErrorsLib {
 
     /// @dev Thrown when the input is too small.
     string internal constant INPUT_TOO_SMALL = "input too small";
+
+    /// @dev Thrown when passing the zero address.
+    string internal constant ZERO_ADDRESS = "zero address";
 
     /// @dev Thrown when passing the zero input.
     string internal constant ZERO_INPUT = "zero input";

test/SpeedJumpIrmTest.sol

@@ -30,6 +30,11 @@ contract AdaptativeCurveIRMTest is Test {
         vm.warp(90 days);
     }
 
+    function testDeployment() public {
+        vm.expectRevert(bytes(ErrorsLib.ZERO_ADDRESS));
+        new AdaptativeCurveIRM(address(0), 0, 0, 0, 0);
+    }
+
     function testFirstBorrowRateEmptyMarket() public {
         Market memory market;
         uint256 avgBorrowRate = irm.borrowRate(marketParams, market);