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[11/19] xhci: check if legacy irq is available before using it as fallback

Message ID 20231201150647.1307406-12-mathias.nyman@linux.intel.com
State Superseded
Headers show
Series [01/19] xhci: dbc: Drop duplicate checks for dma_free_coherent() | expand

Commit Message

Mathias Nyman Dec. 1, 2023, 3:06 p.m. UTC 
From: Niklas Neronin <niklas.neronin@linux.intel.com>

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>
---
 drivers/usb/host/xhci-pci.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index 95ed9404f6f8..7f2b1312e943 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -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);