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Diffstat (limited to 'arch/i386/pci/common.c')
-rw-r--r--arch/i386/pci/common.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/arch/i386/pci/common.c b/arch/i386/pci/common.c
index 3f78d4d8ecf..85503deeda4 100644
--- a/arch/i386/pci/common.c
+++ b/arch/i386/pci/common.c
@@ -293,6 +293,7 @@ static struct dmi_system_id __devinitdata pciprobe_dmi_table[] = {
struct pci_bus * __devinit pcibios_scan_root(int busnum)
{
struct pci_bus *bus = NULL;
+ struct pci_sysdata *sd;
dmi_check_system(pciprobe_dmi_table);
@@ -303,9 +304,19 @@ struct pci_bus * __devinit pcibios_scan_root(int busnum)
}
}
+ /* Allocate per-root-bus (not per bus) arch-specific data.
+ * TODO: leak; this memory is never freed.
+ * It's arguable whether it's worth the trouble to care.
+ */
+ sd = kzalloc(sizeof(*sd), GFP_KERNEL);
+ if (!sd) {
+ printk(KERN_ERR "PCI: OOM, not probing PCI bus %02x\n", busnum);
+ return NULL;
+ }
+
printk(KERN_DEBUG "PCI: Probing PCI hardware (bus %02x)\n", busnum);
- return pci_scan_bus_parented(NULL, busnum, &pci_root_ops, NULL);
+ return pci_scan_bus_parented(NULL, busnum, &pci_root_ops, sd);
}
extern u8 pci_cache_line_size;