1 files changed, 12 insertions, 2 deletions

diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c
index 44eeaa016f1..7d60d1f4deb 100644
--- a/drivers/usb/host/xhci-mem.c
+++ b/drivers/usb/host/xhci-mem.c
@@ -1112,8 +1112,18 @@ int xhci_endpoint_init(struct xhci_hcd *xhci,
         ep_ctx = xhci_get_ep_ctx(xhci, virt_dev->in_ctx, ep_index);
 
         /* Set up the endpoint ring */
-        virt_dev->eps[ep_index].new_ring =
-                xhci_ring_alloc(xhci, 1, true, mem_flags);
+        /*
+         * Isochronous endpoint ring needs bigger size because one isoc URB
+         * carries multiple packets and it will insert multiple tds to the
+         * ring.
+         * This should be replaced with dynamic ring resizing in the future.
+         */
+        if (usb_endpoint_xfer_isoc(&ep->desc))
+                virt_dev->eps[ep_index].new_ring =
+                        xhci_ring_alloc(xhci, 8, true, mem_flags);
+        else
+                virt_dev->eps[ep_index].new_ring =
+                        xhci_ring_alloc(xhci, 1, true, mem_flags);
         if (!virt_dev->eps[ep_index].new_ring) {
                 /* Attempt to use the ring cache */
                 if (virt_dev->num_rings_cached == 0)