diff options
| author | Paolo Bonzini <pbonzini@redhat.com> | 2022-01-18 04:45:32 -0500 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2022-01-19 12:14:02 -0500 |
| commit | 4f5a884fc212d99654e4fb36ba98d5354f0dd18e (patch) | |
| tree | f4ac26f5acd43be75cb9d3b2f89fa92c40dbc8ee /drivers/usb/cdns3/cdnsp-ring.c | |
| parent | e09fccb5435d7b9ab3fd5dfeada8ae40cfa56e08 (diff) | |
| parent | 5f02ef741a785678930f3ff0a8b6b2b0ef1bb402 (diff) | |
Merge branch 'kvm-pi-raw-spinlock' into HEAD
Bring in fix for VT-d posted interrupts before further changing the code in 5.17.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'drivers/usb/cdns3/cdnsp-ring.c')
| -rw-r--r-- | drivers/usb/cdns3/cdnsp-ring.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/usb/cdns3/cdnsp-ring.c b/drivers/usb/cdns3/cdnsp-ring.c index 1b1438457fb0..e45c3d6e1536 100644 --- a/drivers/usb/cdns3/cdnsp-ring.c +++ b/drivers/usb/cdns3/cdnsp-ring.c @@ -1029,6 +1029,8 @@ static void cdnsp_process_ctrl_td(struct cdnsp_device *pdev, return; } + *status = 0; + cdnsp_finish_td(pdev, td, event, pep, status); } @@ -1523,7 +1525,14 @@ irqreturn_t cdnsp_thread_irq_handler(int irq, void *data) spin_lock_irqsave(&pdev->lock, flags); if (pdev->cdnsp_state & (CDNSP_STATE_HALTED | CDNSP_STATE_DYING)) { - cdnsp_died(pdev); + /* + * While removing or stopping driver there may still be deferred + * not handled interrupt which should not be treated as error. + * Driver should simply ignore it. + */ + if (pdev->gadget_driver) + cdnsp_died(pdev); + spin_unlock_irqrestore(&pdev->lock, flags); return IRQ_HANDLED; } |