openwrt-xburst/target/linux/brcm47xx/patches-2.6.25/630-ssb-fix-irq-init.patch

Subject: [OpenWrt-Devel] [PATCH] ssb-pcicore: Fix IRQ-vector init on embedded devices

On embedded devices we must not route the interrupts through
the PCI core, if our host-bus is not PCI.

Reported-by: Steve Brown <sbrown@cortland.com>
Signed-off-by: Michael Buesch <mb@bu3sch.de>

--- a/drivers/ssb/driver_pcicore.c
+++ b/drivers/ssb/driver_pcicore.c
@@ -519,6 +519,13 @@ int ssb_pcicore_dev_irqvecs_enable(struc
 	int err = 0;
 	u32 tmp;
 
+	if (dev->bus->bustype != SSB_BUSTYPE_PCI) {
+		/* This SSB device is not on a PCI host-bus. So the IRQs are
+		 * not routed through the PCI core.
+		 * So we must not enable routing through the PCI core. */
+		goto out;
+	}
+
 	if (!pdev)
 		goto out;
 	bus = pdev->bus;