32 lines
1.1 KiB
Diff
32 lines
1.1 KiB
Diff
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From: Mathias Kresin <dev@kresin.me>
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Date: Tue, 14 Mar 2017 22:12:12 +0100
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Subject: [PATCH v2] MIPS: PCI: scan PCI controllers in reverse order
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Commit 23dac14d058f ("MIPS: PCI: Use struct list_head lists") changed
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the controller list from reverse to straight order without taking care
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of the changed order for the scan of the recorded PCI controllers.
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Traverse the list in reverse order to restore the former behaviour.
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This patches fixes the following PCI error on lantiq:
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pci 0000:01:00.0: BAR 0: error updating (0x1c000004 != 0x000000)
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Fixes: 23dac14d058f ("MIPS: PCI: Use struct list_head lists")
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Signed-off-by: Mathias Kresin <dev@kresin.me>
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---
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arch/mips/pci/pci-legacy.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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--- a/arch/mips/pci/pci-legacy.c
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+++ b/arch/mips/pci/pci-legacy.c
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@@ -222,7 +222,7 @@ static int __init pcibios_init(void)
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struct pci_controller *hose;
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/* Scan all of the recorded PCI controllers. */
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- list_for_each_entry(hose, &controllers, list)
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+ list_for_each_entry_reverse(hose, &controllers, list)
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pcibios_scanbus(hose);
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pci_fixup_irqs(pci_common_swizzle, pcibios_map_irq);
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