[PATCH v6 20/30] powerpc/pci: Fix crash with enabled movable BARs

[Sergey Miroshnichenko]

Add a check for the UNSET resource flag to skip the released BARs

CC: Alexey Kardashevskiy <aik at ozlabs.ru>
CC: Oliver O'Halloran <oohall at gmail.com>
CC: Sam Bobroff <sbobroff at linux.ibm.com>
Signed-off-by: Sergey Miroshnichenko <s.miroshnichenko at yadro.com>
---
 arch/powerpc/platforms/powernv/pci-ioda.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c
index c28d0d9b7ee0..33d5ed8c258f 100644
--- a/arch/powerpc/platforms/powernv/pci-ioda.c
+++ b/arch/powerpc/platforms/powernv/pci-ioda.c
@@ -2976,7 +2976,8 @@ static void pnv_ioda_setup_pe_res(struct pnv_ioda_pe *pe,
 	int index;
 	int64_t rc;
 
-	if (!res || !res->flags || res->start > res->end)
+	if (!res || !res->flags || res->start > res->end ||
+	    (res->flags & IORESOURCE_UNSET))
 		return;
 
 	if (res->flags & IORESOURCE_IO) {
-- 
2.23.0