Multiplication result may overflow 'int' before it is converted to 'unsigned long long'.

[Daniel Wagner]

Multiplication result may overflow 'int' before it is converted to 'unsigned long long'.

nvme.c:7322

		/* Update the data size based on the required block count */
		buffer_size = (nblocks + 1) * logical_block_size;

Tracking issue for:

• https://github.com/linux-nvme/nvme-cli/security/code-scanning/1