xhci: Add missing checks for xhci_alloc_command failure

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 749fc68eb5c1..60fb52ae864b 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -1118,6 +1118,10 @@ static void xhci_handle_cmd_reset_ep(struct xhci_hcd *xhci, int slot_id,
         if (xhci->quirks & XHCI_RESET_EP_QUIRK) {
                 struct xhci_command *command;
                 command = xhci_alloc_command(xhci, false, false, GFP_ATOMIC);
+                if (!command) {
+                        xhci_warn(xhci, "WARN Cannot submit cfg ep: ENOMEM\n");
+                        return;
+                }
                 xhci_dbg_trace(xhci, trace_xhci_dbg_quirks,
                                 "Queueing configure endpoint command");
                 xhci_queue_configure_endpoint(xhci, command,