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path: root/drivers/usb/host/xhci-ring.c
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Diffstat (limited to 'drivers/usb/host/xhci-ring.c')
-rw-r--r--drivers/usb/host/xhci-ring.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 94e6934edb09..bfc99a939455 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -2380,16 +2380,19 @@ static int queue_command(struct xhci_hcd *xhci, u32 field1, u32 field2,
2380 u32 field3, u32 field4, bool command_must_succeed) 2380 u32 field3, u32 field4, bool command_must_succeed)
2381{ 2381{
2382 int reserved_trbs = xhci->cmd_ring_reserved_trbs; 2382 int reserved_trbs = xhci->cmd_ring_reserved_trbs;
2383 int ret;
2384
2383 if (!command_must_succeed) 2385 if (!command_must_succeed)
2384 reserved_trbs++; 2386 reserved_trbs++;
2385 2387
2386 if (!room_on_ring(xhci, xhci->cmd_ring, reserved_trbs)) { 2388 ret = prepare_ring(xhci, xhci->cmd_ring, EP_STATE_RUNNING,
2387 if (!in_interrupt()) 2389 reserved_trbs, GFP_ATOMIC);
2388 xhci_err(xhci, "ERR: No room for command on command ring\n"); 2390 if (ret < 0) {
2391 xhci_err(xhci, "ERR: No room for command on command ring\n");
2389 if (command_must_succeed) 2392 if (command_must_succeed)
2390 xhci_err(xhci, "ERR: Reserved TRB counting for " 2393 xhci_err(xhci, "ERR: Reserved TRB counting for "
2391 "unfailable commands failed.\n"); 2394 "unfailable commands failed.\n");
2392 return -ENOMEM; 2395 return ret;
2393 } 2396 }
2394 queue_trb(xhci, xhci->cmd_ring, false, false, field1, field2, field3, 2397 queue_trb(xhci, xhci->cmd_ring, false, false, field1, field2, field3,
2395 field4 | xhci->cmd_ring->cycle_state); 2398 field4 | xhci->cmd_ring->cycle_state);