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authorRussell King <rmk+kernel@arm.linux.org.uk>2013-10-07 15:43:04 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2013-10-07 15:43:04 +0100
commita56e74f546b64be93731e42d83baf5b538cc1b11 (patch)
tree18f6dee45d801e57ac9db2a31664b0d5c0762c50 /drivers/usb/host/ehci-q.c
parentd08e2e09042bd3f7ef66a35cb4bb92794ab26bb2 (diff)
parente4e7f10bfc4069925e99cc4b428c3434e30b6c3f (diff)
Merge branch 'arm-aesbs' of git://git.linaro.org/people/ardbiesheuvel/linux-arm into devel-stable
Diffstat (limited to 'drivers/usb/host/ehci-q.c')
-rw-r--r--drivers/usb/host/ehci-q.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c
index e321804c347..a7f776a13eb 100644
--- a/drivers/usb/host/ehci-q.c
+++ b/drivers/usb/host/ehci-q.c
@@ -247,6 +247,8 @@ static int qtd_copy_status (
static void
ehci_urb_done(struct ehci_hcd *ehci, struct urb *urb, int status)
+__releases(ehci->lock)
+__acquires(ehci->lock)
{
if (usb_pipetype(urb->pipe) == PIPE_INTERRUPT) {
/* ... update hc-wide periodic stats */
@@ -272,8 +274,11 @@ ehci_urb_done(struct ehci_hcd *ehci, struct urb *urb, int status)
urb->actual_length, urb->transfer_buffer_length);
#endif
+ /* complete() can reenter this HCD */
usb_hcd_unlink_urb_from_ep(ehci_to_hcd(ehci), urb);
+ spin_unlock (&ehci->lock);
usb_hcd_giveback_urb(ehci_to_hcd(ehci), urb, status);
+ spin_lock (&ehci->lock);
}
static int qh_schedule (struct ehci_hcd *ehci, struct ehci_qh *qh);