Re: [kvm-unit-tests PATCH v2] alloc: Add memalign error checks

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On 04/11/19 11:54, Andrew Jones wrote:
> 
> diff --git a/lib/alloc.c b/lib/alloc.c
> index ecdbbc44dbf9..ed8f5f94c9b0 100644
> --- a/lib/alloc.c
> +++ b/lib/alloc.c
> @@ -46,15 +46,17 @@ void *memalign(size_t alignment, size_t size)
>  	uintptr_t blkalign;
>  	uintptr_t mem;
>  
> +	if (!size)
> +		return NULL;
> +
> +	assert(alignment >= sizeof(void *) && is_power_of_2(alignment));
>  	assert(alloc_ops && alloc_ops->memalign);
> -	if (alignment <= sizeof(uintptr_t))
> -		alignment = sizeof(uintptr_t);
> -	else
> -		size += alignment - 1;
>  
> +	size += alignment - 1;
>  	blkalign = MAX(alignment, alloc_ops->align_min);
>  	size = ALIGN(size + METADATA_EXTRA, alloc_ops->align_min);
>  	p = alloc_ops->memalign(blkalign, size);
> +	assert(p);
>  
>  	/* Leave room for metadata before aligning the result.  */
>  	mem = (uintptr_t)p + METADATA_EXTRA;

Looks good, this is what I am queuing.

Paolo



[Index of Archives]     [KVM ARM]     [KVM ia64]     [KVM ppc]     [Virtualization Tools]     [Spice Development]     [Libvirt]     [Libvirt Users]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite Questions]     [Linux Kernel]     [Linux SCSI]     [XFree86]

  Powered by Linux