[AGPGART] Fix up sgi-agp bug with no devices on bus.
Signed-off-by: Eric Kunze <ekunze@sgi.com>
Signed-off-by: Dave Jones <davej@redhat.com>
diff --git a/drivers/char/agp/sgi-agp.c b/drivers/char/agp/sgi-agp.c
index d3aa159..53eeb29 100644
--- a/drivers/char/agp/sgi-agp.c
+++ b/drivers/char/agp/sgi-agp.c
@@ -288,6 +288,8 @@
j = 0;
list_for_each_entry(info, &tioca_list, ca_list) {
struct list_head *tmp;
+ if (list_empty(info->ca_devices))
+ continue;
list_for_each(tmp, info->ca_devices) {
u8 cap_ptr;
pdev = pci_dev_b(tmp);