PCI updates for v4.6:
Enumeration Fix BUG on device attach failure (Lukas Wunner) Do not treat EPROBE_DEFER as device attach failure (Lukas Wunner) -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABAgAGBQJXMhfBAAoJEFmIoMA60/r82rcQAIZUMKvp+z3U2mubYWro3G55 kjUWb7olV5BqO8TJqdo7f3OPjLCPus0c60BFcivfQuBOXNNfN85NDn6/eisv9X85 SyjnhnCeaBxt6sejFhhlP3ksHny4JewoPCNcOMpyCnB6SWeJ3U2vRrJjmqKOaMWV Bj2BqS5/qwWmumbH5PmhNHVVzAClBmpJGLsO4qSoY9ST3k4bzVwJpPMjNIACVpzQ jdD9efkOA8TapOIk14qiPmdHk6stwvvkewMoZYxa70TEKynJUOVbRDU+zgqzvcxG TngB99uz40Zzc8x6ln66ew0w5jsej4oTTqc6yX4zUzCwEUeuSw5NBgPRAcbK1aYX fU8b50n/BoA5S5zzT7aLSu1+Z96mRcqe9isSHWqzJ5gmMK+k2SZ9QaZe2VTywD3H rkTBYPfoYXgcRLBQ2QrhAv8E1yD06ABZ10gxVGlvdvBMKH3LjwyCoLNIefq9vkga /h1TqT2QlC9QU7X6YigYmO/DjBzdZ0Hkc37x9xw9vwWkJ6KTESU46tICJXt5VrLD mLzN2J6K/yePNMC5AMIeFvJGwEQaqNEiZiLFCzvE86HfdfOfe1Vvf2yut12InX7A gaMbelL+wNmT5quaepqG1pPKeWVYkvKYnXl8W6vPtDxFaipwBYYPnuPlyoS6zRdi yZDHyiyzo2CaYyd6nRJU =UX0T -----END PGP SIGNATURE----- Merge tag 'pci-v4.6-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI fixes from Bjorn Helgaas: "Since v4.5, we've WARNed during resume if a PCI device, including a Thunderbolt device, was added while we were suspended. A change we merged for v4.6-rc1 turned that warning into a system hang. These enumeration patches from Lukas Wunner fix this issue: - Fix BUG on device attach failure - Do not treat EPROBE_DEFER as device attach failure" * tag 'pci-v4.6-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: PCI: Do not treat EPROBE_DEFER as device attach failure PCI: Fix BUG on device attach failure
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commit
c5114626f3
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@ -294,7 +294,7 @@ void pci_bus_add_device(struct pci_dev *dev)
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dev->match_driver = true;
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retval = device_attach(&dev->dev);
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if (retval < 0) {
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if (retval < 0 && retval != -EPROBE_DEFER) {
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dev_warn(&dev->dev, "device attach failed (%d)\n", retval);
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pci_proc_detach_device(dev);
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pci_remove_sysfs_dev_files(dev);
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@ -324,7 +324,9 @@ void pci_bus_add_devices(const struct pci_bus *bus)
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}
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list_for_each_entry(dev, &bus->devices, bus_list) {
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BUG_ON(!dev->is_added);
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/* Skip if device attach failed */
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if (!dev->is_added)
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continue;
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child = dev->subordinate;
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if (child)
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pci_bus_add_devices(child);
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