ssb: fix NULL ptr deref when pcihost_wrapper is used

[net-next-2.6.git] / drivers / ssb / pci.c

diff --git a/drivers/ssb/pci.c b/drivers/ssb/pci.c
index 989e2752cc36d8abb9613b6c77b50936be85184c..6dcda86be6ebdb83d579d27907ee1f153889000a 100644 (file)
--- a/drivers/ssb/pci.c
+++ b/drivers/ssb/pci.c
@@ -625,9 +625,12 @@ static int ssb_pci_sprom_get(struct ssb_bus *bus,
                ssb_printk(KERN_ERR PFX "No SPROM available!\n");
                return -ENODEV;
        }
-
-       bus->sprom_offset = (bus->chipco.dev->id.revision < 31) ?
-               SSB_SPROM_BASE1 : SSB_SPROM_BASE31;
+       if (bus->chipco.dev) {  /* can be unavailible! */
+               bus->sprom_offset = (bus->chipco.dev->id.revision < 31) ?
+                       SSB_SPROM_BASE1 : SSB_SPROM_BASE31;
+       } else {
+               bus->sprom_offset = SSB_SPROM_BASE1;
+       }
 
        buf = kcalloc(SSB_SPROMSIZE_WORDS_R123, sizeof(u16), GFP_KERNEL);
        if (!buf)