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ohci: Set skip on ed prior to removal

This commit is contained in:
Ryan Wendland 2022-06-04 22:49:07 +09:30
parent a709d34ecb
commit 74541f9cc4
1 changed files with 4 additions and 0 deletions
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4
src/portable/ohci/ohci.c
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@ -377,12 +377,16 @@ static void ed_list_remove_by_addr(ohci_ed_t * p_head, uint8_t dev_addr)
if (ed->dev_addr == dev_addr)
{
//Prevent Host Controller from processing this ED while we remove it
ed->skip = 1;
// unlink ed
p_prev->next = ed->next;
// point the removed ED's next pointer to list head to make sure HC can always safely move away from this ED
ed->next = (uint32_t) p_head;
ed->used = 0;
ed->skip = 0;
continue;
}