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USB OHCI: Fix finalizing of STALL-ed control request transfers

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In case control transfer is finished with STALL answer from device only
the setup TD is retired into the Done Queue but other TDs (data and
status) are left in the ED queue. HC set the endpoint halted - so we
process such endpoint regardless of it's non-empty queue.

PS: cleanup some trailing spaces.
This commit is contained in:
Siarzhuk Zharski
2013-08-18 14:47:51 +02:00
parent cf58476ccc
commit 291e40c309
1 changed files with 5 additions and 3 deletions
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src/add-ons/kernel/busses/usb/ohci.cpp
+3 -1
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@@ -1040,7 +1040,9 @@ OHCI::_FinishTransfers()
MutexLocker endpointLocker(endpoint->lock); MutexLocker endpointLocker(endpoint->lock);
if ((endpoint->head_physical_descriptor & OHCI_ENDPOINT_HEAD_MASK) if ((endpoint->head_physical_descriptor & OHCI_ENDPOINT_HEAD_MASK)
!= endpoint->tail_physical_descriptor) { != endpoint->tail_physical_descriptor
&& (endpoint->head_physical_descriptor
& OHCI_ENDPOINT_HALTED) == 0) {
// there are still active transfers on this endpoint, we need // there are still active transfers on this endpoint, we need
// to wait for all of them to complete, otherwise we'd read // to wait for all of them to complete, otherwise we'd read
// a potentially bogus data toggle value below // a potentially bogus data toggle value below