/* * This is a simple driver for the GTM601 Voice PCM interface * * Copyright (C) 2015 Goldelico GmbH * * Author: Marek Belisko * * Based on wm8727.c driver * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #include #include #include #include #include #include #include #include #include #include static const struct snd_soc_dapm_widget gtm601_dapm_widgets[] = { SND_SOC_DAPM_OUTPUT("AOUT"), SND_SOC_DAPM_INPUT("AIN"), }; static const struct snd_soc_dapm_route gtm601_dapm_routes[] = { { "AOUT", NULL, "Playback" }, { "Capture", NULL, "AIN" }, }; static struct snd_soc_dai_driver gtm601_dai = { .name = "gtm601", .playback = { .stream_name = "Playback", .channels_min = 1, .channels_max = 1, .rates = SNDRV_PCM_RATE_8000, .formats = SNDRV_PCM_FMTBIT_S16_LE, }, .capture = { .stream_name = "Capture", .channels_min = 1, .channels_max = 1, .rates = SNDRV_PCM_RATE_8000, .formats = SNDRV_PCM_FMTBIT_S16_LE, }, }; static const struct snd_soc_codec_driver soc_codec_dev_gtm601 = { .component_driver = { .dapm_widgets = gtm601_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(gtm601_dapm_widgets), .dapm_routes = gtm601_dapm_routes, .num_dapm_routes = ARRAY_SIZE(gtm601_dapm_routes), }, }; static int gtm601_platform_probe(struct platform_device *pdev) { return snd_soc_register_codec(&pdev->dev, &soc_codec_dev_gtm601, >m601_dai, 1); } static int gtm601_platform_remove(struct platform_device *pdev) { snd_soc_unregister_codec(&pdev->dev); return 0; } #if defined(CONFIG_OF) static const struct of_device_id gtm601_codec_of_match[] = { { .compatible = "option,gtm601", }, {}, }; MODULE_DEVICE_TABLE(of, gtm601_codec_of_match); #endif static struct platform_driver gtm601_codec_driver = { .driver = { .name = "gtm601", .of_match_table = of_match_ptr(gtm601_codec_of_match), }, .probe = gtm601_platform_probe, .remove = gtm601_platform_remove, }; module_platform_driver(gtm601_codec_driver); MODULE_DESCRIPTION("ASoC gtm601 driver"); MODULE_AUTHOR("Marek Belisko "); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:gtm601"); ge'>range
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authorBjorn Helgaas <bhelgaas@google.com>2017-01-27 15:00:45 -0600
committerBjorn Helgaas <bhelgaas@google.com>2017-01-27 15:00:45 -0600
commit030305d69fc6963c16003f50d7e8d74b02d0a143 (patch)
tree363a4e34d199178769b7e7eeb26ea2620a55847b /tools/build
parent4d191b1b63c209e37bf27938ef365244d3c41084 (diff)
PCI/ASPM: Handle PCI-to-PCIe bridges as roots of PCIe hierarchies
In a struct pcie_link_state, link->root points to the pcie_link_state of the root of the PCIe hierarchy. For the topmost link, this points to itself (link->root = link). For others, we copy the pointer from the parent (link->root = link->parent->root). Previously we recognized that Root Ports originated PCIe hierarchies, but we treated PCI/PCI-X to PCIe Bridges as being in the middle of the hierarchy, and when we tried to copy the pointer from link->parent->root, there was no parent, and we dereferenced a NULL pointer: BUG: unable to handle kernel NULL pointer dereference at 0000000000000090 IP: [<ffffffff9e424350>] pcie_aspm_init_link_state+0x170/0x820 Recognize that PCI/PCI-X to PCIe Bridges originate PCIe hierarchies just like Root Ports do, so link->root for these devices should also point to itself. Fixes: 51ebfc92b72b ("PCI: Enumerate switches below PCI-to-PCIe bridges") Link: https://bugzilla.kernel.org/show_bug.cgi?id=193411 Link: https://bugzilla.opensuse.org/show_bug.cgi?id=1022181 Tested-by: lists@ssl-mail.com Tested-by: Jayachandran C. <jnair@caviumnetworks.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> CC: stable@vger.kernel.org # v4.2+
Diffstat (limited to 'tools/build')