Commit 1272fd65 authored by Pawel Laszczak's avatar Pawel Laszczak Committed by Greg Kroah-Hartman

usb: cdns3: Fix issue with using incorrect PCI device function

PCI based platform can have more than two PCI functions.
USBSS PCI Glue driver during initialization should
consider only DRD/HOST/DEVICE PCI functions and
all other should be ignored. This patch adds additional
condition which causes that only DRD and HOST/DEVICE
function will be accepted.

cc: <stable@vger.kernel.org>
Fixes: 7733f6c3 ("usb: cdns3: Add Cadence USB3 DRD Driver")
Signed-off-by: default avatarPawel Laszczak <pawell@cadence.com>
Link: https://lore.kernel.org/r/20230308124427.311245-1-pawell@cadence.comSigned-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 5bc38d33
......@@ -60,6 +60,11 @@ static struct pci_dev *cdns3_get_second_fun(struct pci_dev *pdev)
return NULL;
}
if (func->devfn != PCI_DEV_FN_HOST_DEVICE &&
func->devfn != PCI_DEV_FN_OTG) {
return NULL;
}
return func;
}
......
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