diff options
| author | Alan Stern <stern@rowland.harvard.edu> | 2010-04-08 16:56:37 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-04-22 15:18:28 -0700 |
| commit | 0e5f231bc16ff9910882fa5b9d64d80e7691cfab (patch) | |
| tree | 6312287dcfdd99634ce9027f6ba08e087c124b0e /drivers/usb/host/ehci-hcd.c | |
| parent | 5f677f1d45b2bf08085bbba7394392dfa586fa8e (diff) | |
USB: EHCI: defer reclamation of siTDs
This patch (as1369) fixes a problem in ehci-hcd. Some controllers
occasionally run into trouble when the driver reclaims siTDs too
quickly. This can happen while streaming audio; it causes the
controller to crash.
The patch changes siTD reclamation to work the same way as iTD
reclamation: Completed siTDs are stored on a list and not reused until
at least one frame has passed.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Nate Case <ncase@xes-inc.com>
CC: <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/host/ehci-hcd.c')
| -rw-r--r-- | drivers/usb/host/ehci-hcd.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index 207e7a85aeb..13ead00aecd 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -543,6 +543,7 @@ static int ehci_init(struct usb_hcd *hcd) */ ehci->periodic_size = DEFAULT_I_TDPS; INIT_LIST_HEAD(&ehci->cached_itd_list); + INIT_LIST_HEAD(&ehci->cached_sitd_list); if ((retval = ehci_mem_init(ehci, GFP_KERNEL)) < 0) return retval; |