summaryrefslogtreecommitdiffstats
path: root/arch/alpha/kernel/sys_nautilus.c
diff options
context:
space:
mode:
authorIvan Kokshaysky <ink@jurassic.park.msu.ru>2009-01-15 22:51:18 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2009-01-16 01:39:40 +0100
commit2f88d151cb8e73587983d7feccd70672ff6730fe (patch)
treebb5e134c5d3a3b056e262636015e9d1a44d2a246 /arch/alpha/kernel/sys_nautilus.c
parentalpha: nautilus - fix compile failure with gcc-4.3 (diff)
downloadlinux-2f88d151cb8e73587983d7feccd70672ff6730fe.tar.xz
linux-2f88d151cb8e73587983d7feccd70672ff6730fe.zip
alpha: nautilus - fix hang on boot
Recently introduced generic pci_common_swizzle() relies on bus->self being NULL for the root PCI bus. But on nautilus bus->self points to the host bridge device, which is necessary as we do a root bus sizing on this system. As a result, pci_common_swizzle() loops infinitely. This worked until 2.6.29-rc1 because the alpha-specific swizzle routine checked for bus->parent == NULL (instead of bus->self). Fixed by clearing bus->self after bus sizing is done. Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Richard Henderson <rth@twiddle.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/alpha/kernel/sys_nautilus.c')
-rw-r--r--arch/alpha/kernel/sys_nautilus.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/alpha/kernel/sys_nautilus.c b/arch/alpha/kernel/sys_nautilus.c
index a7f23b5ab814..99c0f46f6b9c 100644
--- a/arch/alpha/kernel/sys_nautilus.c
+++ b/arch/alpha/kernel/sys_nautilus.c
@@ -245,6 +245,10 @@ nautilus_init_pci(void)
IRONGATE0->pci_mem = pci_mem;
pci_bus_assign_resources(bus);
+
+ /* pci_common_swizzle() relies on bus->self being NULL
+ for the root bus, so just clear it. */
+ bus->self = NULL;
pci_fixup_irqs(alpha_mv.pci_swizzle, alpha_mv.pci_map_irq);
}