Commit 80584efc authored by Yoshihiro Shimoda's avatar Yoshihiro Shimoda Committed by Felipe Balbi

usb: gadget: udc: renesas_usb3: fix free size in renesas_usb3_dma_free_prd()

The commit 2d4aa21a ("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: 2d4aa21a ("usb: gadget: udc: renesas_usb3: add support for dedicated DMAC")
Reviewed-by: default avatarGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: default avatarYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: default avatarFelipe Balbi <felipe.balbi@linux.intel.com>
parent 14e1d56c
...@@ -1369,7 +1369,7 @@ static int renesas_usb3_dma_free_prd(struct renesas_usb3 *usb3, ...@@ -1369,7 +1369,7 @@ static int renesas_usb3_dma_free_prd(struct renesas_usb3 *usb3,
usb3_for_each_dma(usb3, dma, i) { usb3_for_each_dma(usb3, dma, i) {
if (dma->prd) { 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, dma->prd_dma);
dma->prd = NULL; dma->prd = NULL;
} }
......
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