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xhci: check if legacy irq is available before using it as fallback

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Move the error check "No MSI-X/MSI found and no IRQ in BIOS" inside
'goto legacy'. It is better to check if the IRQ interrupt is available,
before trying to add a handler. Additionally the aforementioned error
message is much more clear.

Signed-off-by: Niklas Neronin <niklas.neronin@linux.intel.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20231201150647.1307406-12-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Niklas Neronin 2023-12-01 17:06:39 +02:00 committed by Greg Kroah-Hartman
parent cdcaa870c7
commit 5080ef2d37
1 changed files with 1 additions and 1 deletions
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2
drivers/usb/host/xhci-pci.c
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@ -228,12 +228,12 @@ static int xhci_try_enable_msi(struct usb_hcd *hcd)
return 0;
}
legacy_irq:
if (!pdev->irq) {
xhci_err(xhci, "No msi-x/msi found and no IRQ in BIOS\n");
return -EINVAL;
}
legacy_irq:
if (!strlen(hcd->irq_descr))
snprintf(hcd->irq_descr, sizeof(hcd->irq_descr), "%s:usb%d",
hcd->driver->description, hcd->self.busnum);