Subject:[PATCH] PCIE: use PCI_EXT_CAP_NEXT to traverse PCIE extended capability list.

[qingtao . cao]

PCIE extended capability unit is of 4-byte, so the least 2 bits of the most 
significant 12 bits should be masked off to zero when accessing the extended
capability list.

Signed-off-by: Harry Ciao<qingtao.cao@xxxxxxxxxxxxx>
---
 drivers/pci/pcie/aer/aerdrv_core.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/pci/pcie/aer/aerdrv_core.c
+++ b/drivers/pci/pcie/aer/aerdrv_core.c
@@ -52,7 +52,7 @@
 		if (PCI_EXT_CAP_ID(reg32) == PCI_EXT_CAP_ID_ERR)
 			break;
 
-		pos = reg32 >> 20;
+		pos = PCI_EXT_CAP_NEXT(reg32);
 	}
 
 	return pos;
--
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