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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-01-19 06:56:57 +0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-01-19 06:56:57 +0800
commit3542f6b1836d8940615104e22248bb9b7cf54f5f (patch)
tree6808fae6dfb12bb4b7e5e0df4efbe3e0dae8c537 /drivers/usb/host/xhci.c
parentd885d4f3728f386034bb2f7a61b7f2054c49b2d4 (diff)
parentec6f34e5b552fb0a52e6aae1a5afbbb1605cc6cc (diff)
downloadlinux-stable-3542f6b1836d8940615104e22248bb9b7cf54f5f.tar.gz
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Merge 3.19-rc5 into char-misc-next
We want the 3.19-rc5 fixes in here for our testing. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host/xhci.c')
-rw-r--r--drivers/usb/host/xhci.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 01fcbb5eb06e..c50d8d202618 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -3803,6 +3803,15 @@ static int xhci_setup_device(struct usb_hcd *hcd, struct usb_device *udev,
return -EINVAL;
}
+ if (setup == SETUP_CONTEXT_ONLY) {
+ slot_ctx = xhci_get_slot_ctx(xhci, virt_dev->out_ctx);
+ if (GET_SLOT_STATE(le32_to_cpu(slot_ctx->dev_state)) ==
+ SLOT_STATE_DEFAULT) {
+ xhci_dbg(xhci, "Slot already in default state\n");
+ return 0;
+ }
+ }
+
command = xhci_alloc_command(xhci, false, false, GFP_KERNEL);
if (!command)
return -ENOMEM;