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Subject[PATCH 2/2] PCI: Don't fail BAR resize if nothing is reassigned
Date
When pci_reassign_bridge_resources returns -ENOENT, it means that no
resources needed to be "moved". This can happen when the resource was
resized to be smaller, and it's completely fine - there's no need to treat
this as an error and go back to the original BAR size.

Signed-off-by: Michał Winiarski <michal.winiarski@intel.com>
---
drivers/pci/setup-res.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/setup-res.c b/drivers/pci/setup-res.c
index 1946e52e7678a..5de5129055e0a 100644
--- a/drivers/pci/setup-res.c
+++ b/drivers/pci/setup-res.c
@@ -484,7 +484,7 @@ int pci_resize_resource(struct pci_dev *dev, int resno, int size)
/* Check if the new config works by trying to assign everything. */
if (dev->bus->self) {
ret = pci_reassign_bridge_resources(dev->bus->self, res->flags);
- if (ret)
+ if (ret && ret != -ENOENT)
goto error_resize;
}
return 0;
--
2.34.0
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