x86/PCI: MMCONFIG: use pointer to simplify pci_mmcfg_config[] structure access

No functional change, but simplifies a future patch to convert the table
to a list.

Reviewed-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>

1 files changed, 7 insertions, 5 deletions

diff --git a/arch/x86/pci/mmconfig-shared.c b/arch/x86/pci/mmconfig-shared.c
index 5479fbb2d6ab..28ac9f58a986 100644
--- a/arch/x86/pci/mmconfig-shared.c
+++ b/arch/x86/pci/mmconfig-shared.c
@@ -54,12 +54,14 @@ static __init struct pci_mmcfg_region *pci_mmconfig_add(int segment, int start,
                 kfree(pci_mmcfg_config);
         }
         pci_mmcfg_config = new;
-
         pci_mmcfg_config_num++;
-        pci_mmcfg_config[i].address = addr;
-        pci_mmcfg_config[i].segment = segment;
-        pci_mmcfg_config[i].start_bus = start;
-        pci_mmcfg_config[i].end_bus = end;
+
+        new = &pci_mmcfg_config[i];
+
+        new->address = addr;
+        new->segment = segment;
+        new->start_bus = start;
+        new->end_bus = end;
 
         return &pci_mmcfg_config[i];
 }