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drivers/usbhost: Take an xHCI command result from its completion event.

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xhci_command() returned -ETIMEDOUT when a completion arrived without an
interrupt, although the fallback poll had already retrieved the event,
so callers unwound work the controller had completed.

Use the event's completion code whichever path retrieved it.

Assisted-by: Claude:claude-opus-5
Signed-off-by: Justin Hammond <justin@dynam.ac>
This commit is contained in:
Justin Hammond
2026-08-17 10:10:47 -03:00
committed by Alan C. Assis
parent 440d5f7f87
commit 3b7e453012
1 changed files with 9 additions and 1 deletions
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drivers/usbhost/usbhost_xhci_pci.c
+9 -1
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@@ -1938,7 +1938,15 @@ static int xhci_command(FAR struct usbhost_xhci_s *priv,
trb->d1 = priv->cmdres.d1;
trb->d2 = priv->cmdres.d2;
if (XHCI_TRB_D1_CC_GET(trb->d1) != XHCI_TRB_CC_SUCCESS)
if (XHCI_TRB_D1_CC_GET(trb->d1) == XHCI_TRB_CC_SUCCESS)
{
/* The completion event decides the result, whether it arrived by
* interrupt or was found by the poll above.
*/
ret = OK;
}
else
{
pcierr("event CC = %d\n", XHCI_TRB_D1_CC_GET(trb->d1));
ret = -EIO;