Hi Shimoda-san, On Tue, Jul 18, 2017 at 2:26 PM, Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx> 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 same with dma_alloc_coherent() > Otherwise, this code causes a WARNING by mm/page_alloc.c when > renesas_usb3_dma_free_prd() is called. So, this patch fixes it. > > Fixes: 2d4aa21a73ba ("usb: gadget: udc: renesas_usb3: add support for dedicated DMAC") > Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx> Reviewed-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx> Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds