[PATCH 2/8] powerpc/powernv: Fix condition to remove M64

[Gavin Shan]

The M64 resource should be removed if we don't have hook to
initialize it, or (not and) fail to do that.

Signed-off-by: Gavin Shan <gwshan at linux.vnet.ibm.com>
---
 arch/powerpc/platforms/powernv/pci-ioda.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c
index 7ab1dd7..7aa0404 100644
--- a/arch/powerpc/platforms/powernv/pci-ioda.c
+++ b/arch/powerpc/platforms/powernv/pci-ioda.c
@@ -2000,8 +2000,8 @@ static void __init pnv_pci_init_ioda_phb(struct device_node *np,
 		ioda_eeh_phb_reset(hose, OPAL_DEASSERT_RESET);
 	}
 
-	/* Configure M64 window */
-	if (phb->init_m64 && phb->init_m64(phb))
+	/* Remove M64 resource if we can't configure it successfully */
+	if (!phb->init_m64 || phb->init_m64(phb))
 		hose->mem_resources[1].flags = 0;
 }
 
-- 
1.8.3.2