diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-09-16 17:31:36 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-09-16 17:31:36 -0700 |
| commit | 7ac3c93e5dd74486ca4f8f0b02ae55182658d2e5 (patch) | |
| tree | 08b949c872aefbc0f8e12bdcc4dc82297bdd0f2e /drivers/usb/host/ehci-q.c | |
| parent | 23666a74c9f552bc9cfef20ded1b8b29bedb80c6 (diff) | |
| parent | 5698bd757d55b1bb87edd1a9744ab09c142abfc2 (diff) | |
| download | linux-7ac3c93e5dd74486ca4f8f0b02ae55182658d2e5.tar.gz | |
Merge 3.6-rc6 into tty-next
This pulls in the fixes in 3.6-rc6
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host/ehci-q.c')
| -rw-r--r-- | drivers/usb/host/ehci-q.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c index 9bc39ca460c8..4b66374bdc8e 100644 --- a/drivers/usb/host/ehci-q.c +++ b/drivers/usb/host/ehci-q.c @@ -128,9 +128,17 @@ qh_refresh (struct ehci_hcd *ehci, struct ehci_qh *qh) else { qtd = list_entry (qh->qtd_list.next, struct ehci_qtd, qtd_list); - /* first qtd may already be partially processed */ - if (cpu_to_hc32(ehci, qtd->qtd_dma) == qh->hw->hw_current) + /* + * first qtd may already be partially processed. + * If we come here during unlink, the QH overlay region + * might have reference to the just unlinked qtd. The + * qtd is updated in qh_completions(). Update the QH + * overlay here. + */ + if (cpu_to_hc32(ehci, qtd->qtd_dma) == qh->hw->hw_current) { + qh->hw->hw_qtd_next = qtd->hw_next; qtd = NULL; + } } if (qtd) |