dmaengine: stm32-mdma: Use struct_size() in kzalloc()

Make use of the new struct_size() helper instead of the offsetof() idiom.

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20201008141828.GA20325@embeddedor
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Gustavo A. R. Silva 2020-10-08 09:18:28 -05:00 • committed by Vinod Koul
commit 8145dce88a