[PATCH][next] dmaengine: at_xdmac: Use struct_size() in devm_kzalloc()

[Kees Cook]

On Tue, Dec 07, 2021 at 06:10:13PM -0600, Gustavo A. R. Silva wrote:
> Make use of the struct_size() helper instead of an open-coded version, in
> order to avoid any potential type mistakes or integer overflows that, in
> the worst scenario, could lead to heap overflows.
> 
> Link: https://github.com/KSPP/linux/issues/160
> Signed-off-by: Gustavo A. R. Silva <gustavoars at kernel.org>

Reviewed-by: Kees Cook <keescook at chromium.org>

-- 
Kees Cook