In nbu2ss_eq_queue() memory is allocated with dma_alloc_coherent(), though, strangely, NULL is passed as the struct device* argument. Pass the UDC's device instead. Build-tested on x86 only. Fixes: 33aa8d45a4fe ("staging: emxx_udc: Add Emma Mobile USB Gadget driver") Signed-off-by: Alex Dewar <alex.dewar90@xxxxxxxxx> --- So I *think* this is the right fix, but I don't have the hardware so I've only been able to build-test it. My worry is that I could be passing in the wrong struct device* here, which would squelch the warning without fixing the breakage. Can someone cleverer than me tell me if this makes sense? - Alex --- drivers/staging/emxx_udc/emxx_udc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/emxx_udc/emxx_udc.c b/drivers/staging/emxx_udc/emxx_udc.c index 03929b9d3a8b..09e91449c08c 100644 --- a/drivers/staging/emxx_udc/emxx_udc.c +++ b/drivers/staging/emxx_udc/emxx_udc.c @@ -2593,7 +2593,7 @@ static int nbu2ss_ep_queue(struct usb_ep *_ep, if (req->unaligned) { if (!ep->virt_buf) - ep->virt_buf = dma_alloc_coherent(NULL, PAGE_SIZE, + ep->virt_buf = dma_alloc_coherent(udc->dev, PAGE_SIZE, &ep->phys_buf, GFP_ATOMIC | GFP_DMA); if (ep->epnum > 0) { -- 2.28.0 _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel