return -EAGAIN;
ed->state = ED_OPER;
- ed->ed_prev = 0;
- ed->ed_next = 0;
+ ed->ed_prev = NULL;
+ ed->ed_next = NULL;
ed->hwNextED = 0;
wmb ();
if (!ed->hwNextED) {
ohci->hc_control &= ~OHCI_CTRL_CLE;
writel (ohci->hc_control, &ohci->regs->control);
- // a readl() later syncs CLE with the HC
+ // a ohci_readl() later syncs CLE with the HC
} else
writel (le32_to_cpup (&ed->hwNextED),
&ohci->regs->ed_controlhead);
if (ohci->ed_controltail == ed) {
ohci->ed_controltail = ed->ed_prev;
if (ohci->ed_controltail)
- ohci->ed_controltail->ed_next = 0;
+ ohci->ed_controltail->ed_next = NULL;
} else if (ed->ed_next) {
ed->ed_next->ed_prev = ed->ed_prev;
}
if (!ed->hwNextED) {
ohci->hc_control &= ~OHCI_CTRL_BLE;
writel (ohci->hc_control, &ohci->regs->control);
- // a readl() later syncs BLE with the HC
+ // a ohci_readl() later syncs BLE with the HC
} else
writel (le32_to_cpup (&ed->hwNextED),
&ohci->regs->ed_bulkhead);
if (ohci->ed_bulktail == ed) {
ohci->ed_bulktail = ed->ed_prev;
if (ohci->ed_bulktail)
- ohci->ed_bulktail->ed_next = 0;
+ ohci->ed_bulktail->ed_next = NULL;
} else if (ed->ed_next) {
ed->ed_next->ed_prev = ed->ed_prev;
}
if (!td) {
/* out of memory */
ed_free (ohci, ed);
- ed = 0;
+ ed = NULL;
goto done;
}
ed->dummy = td;
/* rm_list is just singly linked, for simplicity */
ed->ed_next = ohci->ed_rm_list;
- ed->ed_prev = 0;
+ ed->ed_prev = NULL;
ohci->ed_rm_list = ed;
/* enable SOF interrupt */
writel (OHCI_INTR_SF, &ohci->regs->intrstatus);
writel (OHCI_INTR_SF, &ohci->regs->intrenable);
// flush those writes, and get latest HCCA contents
- (void) readl (&ohci->regs->control);
+ (void) ohci_readl (&ohci->regs->control);
/* SF interrupt might get delayed; record the frame counter value that
* indicates when the HC isn't looking at it, so concurrent unlinks
/* only take off EDs that the HC isn't using, accounting for
* frame counter wraps and EDs with partially retired TDs
*/
- if (likely (HCD_IS_RUNNING(ohci->hcd.state))) {
+ if (likely (regs && HCD_IS_RUNNING(ohci->hcd.state))) {
if (tick_before (tick, ed->tick)) {
skip_ed:
last = &ed->ed_next;
* entries (which we'd ignore), but paranoia won't hurt.
*/
*last = ed->ed_next;
- ed->ed_next = 0;
+ ed->ed_next = NULL;
modified = 0;
/* unlink urbs as requested, but rescan the list after