Kernel: Convert NVMeNameSpace::try_create() to KString

Author: https://github.com/IdanHo
Commit: https://github.com/SerenityOS/serenity/commit/4b74f2e3ecc
Pull-request: https://github.com/SerenityOS/serenity/pull/11817
Reviewed-by: https://github.com/bgianfo ✅

Kernel/Storage/NVMe/NVMeNameSpace.cpp

@@ -16,8 +16,7 @@ ErrorOr<NonnullRefPtr<NVMeNameSpace>> NVMeNameSpace::try_create(NonnullRefPtrVec
 {
     auto minor_number = StorageManagement::generate_storage_minor_number();
     auto major_number = StorageManagement::storage_type_major_number();
-    auto device_name = String::formatted("nvme{:d}n{:d}", controller_id, nsid);
-    auto device_name_kstring = KString::must_create(device_name.view());
+    auto device_name_kstring = TRY(KString::formatted("nvme{:d}n{:d}", controller_id, nsid));
     auto device = TRY(DeviceManagement::try_create_device<NVMeNameSpace>(queues, storage_size, lba_size, major_number.value(), minor_number.value(), nsid, move(device_name_kstring)));
 
     return device;