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| author | Paolo Bonzini <pbonzini@redhat.com> | 2016-01-26 18:28:36 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2016-01-26 18:28:36 +0300 |
| commit | b8bc3bde9c8c90500c648627d53f846642ff8639 (patch) | |
| tree | 0c3ed82848a25948206556bc699a10d30bd18d07 /drivers/usb/host/ehci-q.c | |
| parent | 171b5682aa8597174e80ec4128c87538103f2213 (diff) | |
| parent | 9abc2a08a7d665b02bdde974fd6c44aae86e923e (diff) | |
| download | linux-b8bc3bde9c8c90500c648627d53f846642ff8639.tar.xz | |
Merge tag 'kvm-s390-master-4.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD
KVM: s390: Fixes for kvm/master (targeting 4.5)
1. Fallout of some bigger floating point/vector rework in s390
- memory leak -> stable 4.3+
- memory overwrite -> stable 4.4+
2. enable KVM-VFIO for s390
Diffstat (limited to 'drivers/usb/host/ehci-q.c')
| -rw-r--r-- | drivers/usb/host/ehci-q.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c index 54f5332f814d..aad0777240d3 100644 --- a/drivers/usb/host/ehci-q.c +++ b/drivers/usb/host/ehci-q.c @@ -132,10 +132,14 @@ qh_refresh (struct ehci_hcd *ehci, struct ehci_qh *qh) * qtd is updated in qh_completions(). Update the QH * overlay here. */ - if (qh->hw->hw_token & ACTIVE_BIT(ehci)) + if (qh->hw->hw_token & ACTIVE_BIT(ehci)) { qh->hw->hw_qtd_next = qtd->hw_next; - else + if (qh->should_be_inactive) + ehci_warn(ehci, "qh %p should be inactive!\n", qh); + } else { qh_update(ehci, qh, qtd); + } + qh->should_be_inactive = 0; } /*-------------------------------------------------------------------------*/ @@ -438,6 +442,7 @@ qh_completions (struct ehci_hcd *ehci, struct ehci_qh *qh) (hw->hw_token & ACTIVE_BIT(ehci))) { token = hc32_to_cpu(ehci, hw->hw_token); hw->hw_token &= ~ACTIVE_BIT(ehci); + qh->should_be_inactive = 1; /* An unlink may leave an incomplete * async transaction in the TT buffer. |