diff options
Diffstat (limited to 'drivers/usb/host')
| -rw-r--r-- | drivers/usb/host/ehci-q.c | 13 | ||||
| -rw-r--r-- | drivers/usb/host/ohci-da8xx.c | 8 | ||||
| -rw-r--r-- | drivers/usb/host/xhci-pci.c | 2 |
3 files changed, 19 insertions, 4 deletions
diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c index aa2f77f1506d..8a5c9b3ebe1e 100644 --- a/drivers/usb/host/ehci-q.c +++ b/drivers/usb/host/ehci-q.c @@ -27,6 +27,10 @@ /*-------------------------------------------------------------------------*/ +/* PID Codes that are used here, from EHCI specification, Table 3-16. */ +#define PID_CODE_IN 1 +#define PID_CODE_SETUP 2 + /* fill a qtd, returning how much of the buffer we were able to queue up */ static int @@ -190,7 +194,7 @@ static int qtd_copy_status ( int status = -EINPROGRESS; /* count IN/OUT bytes, not SETUP (even short packets) */ - if (likely (QTD_PID (token) != 2)) + if (likely(QTD_PID(token) != PID_CODE_SETUP)) urb->actual_length += length - QTD_LENGTH (token); /* don't modify error codes */ @@ -206,6 +210,13 @@ static int qtd_copy_status ( if (token & QTD_STS_BABBLE) { /* FIXME "must" disable babbling device's port too */ status = -EOVERFLOW; + /* + * When MMF is active and PID Code is IN, queue is halted. + * EHCI Specification, Table 4-13. + */ + } else if ((token & QTD_STS_MMF) && + (QTD_PID(token) == PID_CODE_IN)) { + status = -EPROTO; /* CERR nonzero + halt --> stall */ } else if (QTD_CERR(token)) { status = -EPIPE; diff --git a/drivers/usb/host/ohci-da8xx.c b/drivers/usb/host/ohci-da8xx.c index 38183ac438c6..1371b0c249ec 100644 --- a/drivers/usb/host/ohci-da8xx.c +++ b/drivers/usb/host/ohci-da8xx.c @@ -415,13 +415,17 @@ static int ohci_da8xx_probe(struct platform_device *pdev) } da8xx_ohci->oc_gpio = devm_gpiod_get_optional(dev, "oc", GPIOD_IN); - if (IS_ERR(da8xx_ohci->oc_gpio)) + if (IS_ERR(da8xx_ohci->oc_gpio)) { + error = PTR_ERR(da8xx_ohci->oc_gpio); goto err; + } if (da8xx_ohci->oc_gpio) { oc_irq = gpiod_to_irq(da8xx_ohci->oc_gpio); - if (oc_irq < 0) + if (oc_irq < 0) { + error = oc_irq; goto err; + } error = devm_request_threaded_irq(dev, oc_irq, NULL, ohci_da8xx_oc_thread, IRQF_TRIGGER_RISING | diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c index 2907fe4d78dd..4917c5b033fa 100644 --- a/drivers/usb/host/xhci-pci.c +++ b/drivers/usb/host/xhci-pci.c @@ -519,7 +519,6 @@ static int xhci_pci_resume(struct usb_hcd *hcd, bool hibernated) retval = xhci_resume(xhci, hibernated); return retval; } -#endif /* CONFIG_PM */ static void xhci_pci_shutdown(struct usb_hcd *hcd) { @@ -532,6 +531,7 @@ static void xhci_pci_shutdown(struct usb_hcd *hcd) if (xhci->quirks & XHCI_SPURIOUS_WAKEUP) pci_set_power_state(pdev, PCI_D3hot); } +#endif /* CONFIG_PM */ /*-------------------------------------------------------------------------*/ |