target/linux/generic/patches-4.9/170-MIPS-PCI-add-controllers-before-the-specified-head.patch

   1 From: Mathias Kresin <dev@kresin.me>
   2 Date: Sun, 26 Mar 2017 19:05:36 +0200
   3 Subject: MIPS: PCI: add controllers before the specified head
   4
   5 With commit 23dac14d058f ("MIPS: PCI: Use struct list_head lists") new
   6 controllers are added after the specified head where they were added
   7 before the specified head previously.
   8
   9 Use list_add_tail to restore the former order.
  10
  11 This patches fixes the following PCI error on lantiq:
  12
  13   pci 0000:01:00.0: BAR 0: error updating (0x1c000004 != 0x000000)
  14
  15 Fixes: 23dac14d058f ("MIPS: PCI: Use struct list_head lists")
  16 Signed-off-by: Mathias Kresin <dev@kresin.me>
  17 ---
  18  arch/mips/pci/pci-legacy.c | 2 +-
  19  1 file changed, 1 insertion(+), 1 deletion(-)
  20
  21 --- a/arch/mips/pci/pci-legacy.c
  22 +++ b/arch/mips/pci/pci-legacy.c
  23 @@ -190,7 +190,7 @@ void register_pci_controller(struct pci_
  24         }
  25
  26         INIT_LIST_HEAD(&hose->list);
  27 -       list_add(&hose->list, &controllers);
  28 +       list_add_tail(&hose->list, &controllers);
  29
  30         /*
  31          * Do not panic here but later - this might happen before console init.