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-rw-r--r--arch/x86_64/kernel/k8.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/x86_64/kernel/k8.c b/arch/x86_64/kernel/k8.c
index bc11b32e8b4..7377ccb2133 100644
--- a/arch/x86_64/kernel/k8.c
+++ b/arch/x86_64/kernel/k8.c
@@ -39,10 +39,10 @@ int cache_k8_northbridges(void)
{
int i;
struct pci_dev *dev;
+
if (num_k8_northbridges)
return 0;
- num_k8_northbridges = 0;
dev = NULL;
while ((dev = next_k8_northbridge(dev)) != NULL)
num_k8_northbridges++;
@@ -52,6 +52,11 @@ int cache_k8_northbridges(void)
if (!k8_northbridges)
return -ENOMEM;
+ if (!num_k8_northbridges) {
+ k8_northbridges[0] = NULL;
+ return 0;
+ }
+
flush_words = kmalloc(num_k8_northbridges * sizeof(u32), GFP_KERNEL);
if (!flush_words) {
kfree(k8_northbridges);