PCI: Handle case when no pci device can provide cache line size hint

[safe/jmp/linux-2.6] / drivers / pci / quirks.c

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 7cfa7c3..f70f4e2 100644 (file)
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -2629,7 +2629,7 @@ static int __init pci_apply_final_quirks(void)
        if (!pci_cache_line_size) {
                printk(KERN_DEBUG "PCI: CLS %u bytes, default %u\n",
                       cls << 2, pci_dfl_cache_line_size << 2);
-               pci_cache_line_size = cls;
+               pci_cache_line_size = cls ? cls : pci_dfl_cache_line_size;
        }
 
        return 0;