Is it entirely possible that the BIOS wasn't able to assign resources to
a device. In this case don't crash in pci_release_resource() when we try
to resize the resource.
Signed-off-by: Christian König <christian.koenig@xxxxxxx>
CC: stable@xxxxxxxxxxxxxxx
---
drivers/pci/setup-res.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/pci/setup-res.c b/drivers/pci/setup-res.c
index e815111f3f81..fd72c87a9b72 100644
--- a/drivers/pci/setup-res.c
+++ b/drivers/pci/setup-res.c
@@ -401,6 +401,9 @@ void pci_release_resource(struct pci_dev *dev, int resno)
{
struct resource *res = dev->resource + resno;
+ if (!res->parent)
+ return;
+
dev_info(&dev->dev, "BAR %d: releasing %pR\n", resno, res);
release_resource(res);
res->end = resource_size(res) - 1;
--
2.14.1
