From: Yoshihiro Shimoda Date: Tue, 18 Jul 2017 12:26:40 +0000 (+0900) Subject: usb: gadget: udc: renesas_usb3: fix free size in renesas_usb3_dma_free_prd() X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=80584efcc6bc99871433cc5b8f639cc0154962ea;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git 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 renesas_usb3_dma_free_prd() is called. So, this patch fixes it. Fixes: 2d4aa21a73ba ("usb: gadget: udc: renesas_usb3: add support for dedicated DMAC") Reviewed-by: Geert Uytterhoeven Signed-off-by: Yoshihiro Shimoda Signed-off-by: Felipe Balbi --- diff --git a/drivers/usb/gadget/udc/renesas_usb3.c b/drivers/usb/gadget/udc/renesas_usb3.c index d8278322d5ac..923ad5acc482 100644 --- a/drivers/usb/gadget/udc/renesas_usb3.c +++ b/drivers/usb/gadget/udc/renesas_usb3.c @@ -1369,7 +1369,7 @@ static int renesas_usb3_dma_free_prd(struct renesas_usb3 *usb3, usb3_for_each_dma(usb3, dma, i) { if (dma->prd) { - dma_free_coherent(dev, USB3_DMA_MAX_XFER_SIZE, + dma_free_coherent(dev, USB3_DMA_PRD_SIZE, dma->prd, dma->prd_dma); dma->prd = NULL; }