USB: serial: io_edgeport: fix NULL-deref at open

[pandora-kernel.git] / drivers / pnp / quirks.c

diff --git a/drivers/pnp/quirks.c b/drivers/pnp/quirks.c
index dfbd5a6..258fef2 100644 (file)
--- a/drivers/pnp/quirks.c
+++ b/drivers/pnp/quirks.c
@@ -295,6 +295,45 @@ static void quirk_system_pci_resources(struct pnp_dev *dev)
        }
 }
 
+#ifdef CONFIG_AMD_NB
+
+#include <asm/amd_nb.h>
+
+static void quirk_amd_mmconfig_area(struct pnp_dev *dev)
+{
+       resource_size_t start, end;
+       struct pnp_resource *pnp_res;
+       struct resource *res;
+       struct resource mmconfig_res, *mmconfig;
+
+       mmconfig = amd_get_mmconfig_range(&mmconfig_res);
+       if (!mmconfig)
+               return;
+
+       list_for_each_entry(pnp_res, &dev->resources, list) {
+               res = &pnp_res->res;
+               if (res->end < mmconfig->start || res->start > mmconfig->end ||
+                   (res->start == mmconfig->start && res->end == mmconfig->end))
+                       continue;
+
+               dev_info(&dev->dev, FW_BUG
+                        "%pR covers only part of AMD MMCONFIG area %pR; adding more reservations\n",
+                        res, mmconfig);
+               if (mmconfig->start < res->start) {
+                       start = mmconfig->start;
+                       end = res->start - 1;
+                       pnp_add_mem_resource(dev, start, end, 0);
+               }
+               if (mmconfig->end > res->end) {
+                       start = res->end + 1;
+                       end = mmconfig->end;
+                       pnp_add_mem_resource(dev, start, end, 0);
+               }
+               break;
+       }
+}
+#endif
+
 /*
  *  PnP Quirks
  *  Cards or devices that need some tweaking due to incomplete resource info
@@ -322,6 +361,9 @@ static struct pnp_fixup pnp_fixups[] = {
        /* PnP resources that might overlap PCI BARs */
        {"PNP0c01", quirk_system_pci_resources},
        {"PNP0c02", quirk_system_pci_resources},
+#ifdef CONFIG_AMD_NB
+       {"PNP0c01", quirk_amd_mmconfig_area},
+#endif
        {""}
 };