4.7-stable review patch. If anyone has any objections, please let me know.
------------------ From: Felipe Balbi <[email protected]> commit 23fd537c9508fb6e3b93ddf23982f51afc087781 upstream. Always unmap all SG entries as required by DMA API Fixes: a698908d3b3b ("usb: gadget: add generic map/unmap request utilities") Signed-off-by: Felipe Balbi <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/usb/gadget/udc/udc-core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/usb/gadget/udc/udc-core.c +++ b/drivers/usb/gadget/udc/udc-core.c @@ -106,7 +106,7 @@ void usb_gadget_unmap_request_by_dev(str return; if (req->num_mapped_sgs) { - dma_unmap_sg(dev, req->sg, req->num_mapped_sgs, + dma_unmap_sg(dev, req->sg, req->num_sgs, is_in ? DMA_TO_DEVICE : DMA_FROM_DEVICE); req->num_mapped_sgs = 0;
