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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>
This commit is contained in:
Hans de Goede 2014-07-25 22:01:21 +02:00 committed by Greg Kroah-Hartman
parent 170625e994
commit a0ee619f3c
2 changed files with 8 additions and 0 deletions
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4
drivers/usb/host/xhci-ring.c
View File

@ -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,

4
drivers/usb/host/xhci.c
View File

@ -1553,6 +1553,10 @@ int xhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
*/
if (!(ep->ep_state & EP_HALT_PENDING)) {
command = xhci_alloc_command(xhci, false, false, GFP_ATOMIC);
if (!command) {
ret = -ENOMEM;
goto done;
}
ep->ep_state |= EP_HALT_PENDING;
ep->stop_cmds_pending++;
ep->stop_cmd_timer.expires = jiffies +