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pci: don't reassign to ROM res if it is not going to be enabled

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A ROM resource that doesn't fit should not cause us to try to re-assign
all the bus resources.  Nobody generally cares, and re-assigning is
going to just cause way more troubles than it tries to solve.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Yinghai Lu 2010-02-28 15:49:39 -08:00 committed by Linus Torvalds
parent 30ff056c42
commit 9a928660c9
1 changed files with 10 additions and 2 deletions
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12
drivers/pci/setup-bus.c
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@ -101,9 +101,17 @@ static void __assign_resources_sorted(struct resource_list *head,
for (list = head->next; list;) {
res = list->res;
idx = res - &list->dev->resource[0];
if (pci_assign_resource(list->dev, idx)) {
if (fail_head && !pci_is_root_bus(list->dev->bus))
add_to_failed_list(fail_head, list->dev, res);
if (fail_head && !pci_is_root_bus(list->dev->bus)) {
/*
* if the failed res is for ROM BAR, and it will
* be enabled later, don't add it to the list
*/
if (!((idx == PCI_ROM_RESOURCE) &&
(!(res->flags & IORESOURCE_ROM_ENABLE))))
add_to_failed_list(fail_head, list->dev, res);
}
res->start = 0;
res->end = 0;
res->flags = 0;