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ieee1394: ohci1394: don't schedule IT tasklets on IR events

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Bug noted by Pieter Palmers:  Isochronous transmit tasklets were
scheduled on isochronous receive events, in addition to the proper
isochronous receive tasklets.

http://marc.info/?l=linux1394-devel&m=119783196222802

Signed-off-by: Stefan Richter <[email protected]>
This commit is contained in:
Stefan Richter 2007-12-16 20:53:13 +01:00
commit 85c5798b09
1 changed files with 8 additions and 4 deletions
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12
drivers/ieee1394/ohci1394.c
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@ -2126,10 +2126,14 @@ static void ohci_schedule_iso_tasklets(struct ti_ohci *ohci,
list_for_each_entry(t, &ohci->iso_tasklet_list, link) {
mask = 1 << t->context;
if (t->type == OHCI_ISO_TRANSMIT && tx_event & mask)
tasklet_schedule(&t->tasklet);
else if (rx_event & mask)
tasklet_schedule(&t->tasklet);
if (t->type == OHCI_ISO_TRANSMIT) {
if (tx_event & mask)
tasklet_schedule(&t->tasklet);
} else {
/* OHCI_ISO_RECEIVE or OHCI_ISO_MULTICHANNEL_RECEIVE */
if (rx_event & mask)
tasklet_schedule(&t->tasklet);
}
}
spin_unlock_irqrestore(&ohci->iso_tasklet_list_lock, flags);