[PATCH] block:Change the function,nvme_alloc_queue to use -ENOMEM for when failing memory allocations

[Matthew Wilcox]

On Tue, May 12, 2015 at 07:51:31PM -0400, Nicholas Krause wrote:
> This changes the function,nvme_alloc_queue to use the kernel code,
> -ENOMEM for when failing to allocate the memory required for the
> nvme_queue structure pointer,nvme in order to correctly return
> to the caller the correct reason for this function's failing.

>  	if (!nvmeq)
> -		return NULL;
> +		return -ENOMEM;
>  

You didn't even compile-test this, did you?