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Subject[PATCH v9 37/60] PCI: Check if resource is allocated before trying to assign one
Date
In following alt_size support, we will call pci_assign_resource() several
times on one resource list, and some resources could have been assigned
already.

Skip allocated resource in the list, as pci_assign_resource()
only can handle not assigned resource.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
---
drivers/pci/setup-bus.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c
index e5b3d8c..2cc8a1e 100644
--- a/drivers/pci/setup-bus.c
+++ b/drivers/pci/setup-bus.c
@@ -386,7 +386,7 @@ static void assign_requested_resources_sorted(struct list_head *head,
list_for_each_entry(dev_res, head, list) {
res = dev_res->res;
idx = res - &dev_res->dev->resource[0];
- if (resource_size(res) &&
+ if (!res->parent && resource_size(res) &&
pci_assign_resource(dev_res->dev, idx)) {
if (fail_head)
add_to_list(fail_head, dev_res->dev, res);
--
1.8.4.5


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