Merge branch 'kvm-updates/3.2' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm

[firefly-linux-kernel-4.4.55.git] / drivers / usb / musb / musb_gadget_ep0.c

diff --git a/drivers/usb/musb/musb_gadget_ep0.c b/drivers/usb/musb/musb_gadget_ep0.c
index 9378b359c1f012d6abcacd358b7366bcafb32912..6a0d0467ec748131b7cbcd505fd3fce2497e2bbe 100644 (file)
--- a/drivers/usb/musb/musb_gadget_ep0.c
+++ b/drivers/usb/musb/musb_gadget_ep0.c
@@ -679,6 +679,14 @@ irqreturn_t musb_g_ep0_irq(struct musb *musb)
                        musb_readb(mbase, MUSB_FADDR),
                        decode_ep0stage(musb->ep0_state));
 
+       if (csr & MUSB_CSR0_P_DATAEND) {
+               /*
+                * If DATAEND is set we should not call the callback,
+                * hence the status stage is not complete.
+                */
+               return IRQ_HANDLED;
+       }
+
        /* I sent a stall.. need to acknowledge it now.. */
        if (csr & MUSB_CSR0_P_SENTSTALL) {
                musb_writew(regs, MUSB_CSR0,