Re: [PATCH 1/3] usb: gadget: udc: renesas_usb3: fix free size in renesas_usb3_dma_free_prd()

Hi Shimoda-san, On Tue, Jul 18, 2017 at 2:26 PM, Yoshihiro Shimoda wrote: > The commit 2d4aa21a73ba ("usb: gadget: udc: renesas_usb3: add support > for dedicated DMAC") has a bug in the renesas_usb3_dma_free_prd(). > The size of dma_free_coherent() should be the

[PATCH 1/3] usb: gadget: udc: renesas_usb3: fix free size in renesas_usb3_dma_free_prd()

The commit 2d4aa21a73ba ("usb: gadget: udc: renesas_usb3: add support for dedicated DMAC") has a bug in the renesas_usb3_dma_free_prd(). The size of dma_free_coherent() should be the same with dma_alloc_coherent() Otherwise, this code causes a WARNING by mm/page_alloc.c when