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15adb20f64
Definitions for idisp snd_soc_dai_links within skl_hda_dsp_common are
missing platform component. Add it to address following bug reported by
KASAN:
[ 10.538502] BUG: KASAN: global-out-of-bounds in skl_hda_audio_probe+0x13a/0x2b0 [snd_soc_skl_hda_dsp]
[ 10.538509] Write of size 8 at addr ffffffffc0606840 by task systemd-udevd/299
(...)
[ 10.538519] Call Trace:
[ 10.538524] dump_stack+0x62/0x95
[ 10.538528] print_address_description+0x2f5/0x3b0
[ 10.538532] ? skl_hda_audio_probe+0x13a/0x2b0 [snd_soc_skl_hda_dsp]
[ 10.538535] __kasan_report+0x134/0x191
[ 10.538538] ? skl_hda_audio_probe+0x13a/0x2b0 [snd_soc_skl_hda_dsp]
[ 10.538542] ? skl_hda_audio_probe+0x13a/0x2b0 [snd_soc_skl_hda_dsp]
[ 10.538544] kasan_report+0x12/0x20
[ 10.538546] __asan_store8+0x57/0x90
[ 10.538550] skl_hda_audio_probe+0x13a/0x2b0 [snd_soc_skl_hda_dsp]
[ 10.538553] platform_drv_probe+0x51/0xb0
[ 10.538556] really_probe+0x311/0x600
[ 10.538559] driver_probe_device+0x87/0x1b0
[ 10.538562] device_driver_attach+0x8f/0xa0
[ 10.538565] ? device_driver_attach+0xa0/0xa0
[ 10.538567] __driver_attach+0x102/0x1a0
[ 10.538569] ? device_driver_attach+0xa0/0xa0
[ 10.538572] bus_for_each_dev+0xe8/0x160
[ 10.538574] ? subsys_dev_iter_exit+0x10/0x10
[ 10.538577] ? preempt_count_sub+0x18/0xc0
[ 10.538580] ? _raw_write_unlock+0x1f/0x40
[ 10.538582] driver_attach+0x2b/0x30
[ 10.538585] bus_add_driver+0x251/0x340
[ 10.538588] driver_register+0xd3/0x1c0
[ 10.538590] __platform_driver_register+0x6c/0x80
[ 10.538592] ? 0xffffffffc03e8000
[ 10.538595] skl_hda_audio_init+0x1c/0x1000 [snd_soc_skl_hda_dsp]
[ 10.538598] do_one_initcall+0xd0/0x36a
[ 10.538600] ? trace_event_raw_event_initcall_finish+0x160/0x160
[ 10.538602] ? kasan_unpoison_shadow+0x36/0x50
[ 10.538605] ? __kasan_kmalloc+0xcc/0xe0
[ 10.538607] ? kasan_unpoison_shadow+0x36/0x50
[ 10.538609] ? kasan_poison_shadow+0x2f/0x40
[ 10.538612] ? __asan_register_globals+0x65/0x80
[ 10.538615] do_init_module+0xf9/0x36f
[ 10.538619] load_module+0x398e/0x4590
[ 10.538625] ? module_frob_arch_sections+0x20/0x20
[ 10.538628] ? __kasan_check_write+0x14/0x20
[ 10.538630] ? kernel_read+0x9a/0xc0
[ 10.538632] ? __kasan_check_write+0x14/0x20
[ 10.538634] ? kernel_read_file+0x1d3/0x3c0
[ 10.538638] ? cap_capable+0xca/0x110
[ 10.538642] __do_sys_finit_module+0x190/0x1d0
[ 10.538644] ? __do_sys_finit_module+0x190/0x1d0
[ 10.538646] ? __x64_sys_init_module+0x50/0x50
[ 10.538649] ? expand_files+0x380/0x380
[ 10.538652] ? __kasan_check_write+0x14/0x20
[ 10.538654] ? fput_many+0x20/0xc0
[ 10.538658] __x64_sys_finit_module+0x43/0x50
[ 10.538660] do_syscall_64+0xce/0x700
[ 10.538662] ? syscall_return_slowpath+0x230/0x230
[ 10.538665] ? __do_page_fault+0x51e/0x640
[ 10.538668] ? __kasan_check_read+0x11/0x20
[ 10.538670] ? prepare_exit_to_usermode+0xc7/0x200
[ 10.538673] entry_SYSCALL_64_after_hwframe+0x44/0xa9
Fixes: a78959f407 ("ASoC: Intel: skl_hda_dsp_common: use modern dai_link style")
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20200122181254.22801-1-cezary.rojewski@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.