Commit 38cbf9598feba97de9f9b43efa9153fd7c1a2ec9 ("ASoC: core: Try to use regmap if the driver doesn't set up any I/O") causes an oops on boot when the wm9712 AC97 codec is probed.

Reverting it (or alternatively setting wm9712's codec::control_data to a random pointer) fixes it.

Thanks, Manuel Lauss

DSPS A reading from reg 128 of wm9712-codec.1 CPU 0 Unable to handle kernel paging request at virtual address 00000064, epc == 804d7190, ra == 805edabc Oops[#1]: Cpu 0 $ 0 : 00000000 10003c00 00000000 809c208c $ 4 : 00000000 00000080 8fc2bbb8 00000002 $ 8 : 00000000 10003c00 00000010 000000a2 $12 : 38323120 ffffffe0 00000000 20666f20 $16 : 8fdc77e0 00000080 00000001 00000000 $20 : 00000005 00000080 808aa9b8 809932b8 $24 : 00000010 805eda20 $28 : 8fc2a000 8fc2bb88 00000000 805edabc Hi : 00000000 Lo : 0000014a epc : 804d7190 regmap_read+0xc/0x6c Not tainted ra : 805edabc hw_read+0x9c/0xac Status: 10003c03 KERNEL EXL IE Cause : 00808008 BadVA : 00000064 PrId : 800c8000 (Au1300) Process swapper (pid: 1, threadinfo=8fc2a000, task=8fc29a48, tls=00000000) Stack : 00000001 00000000 00000005 00000080 809918ec 8fc2bbb4 8fdc77e0 805edabc 8fe178a0 805df5f4 80958039 00000080 8fe0d320 00000002 8fc2bbd4 8fe0a720 8fe15b40 805e4abc 2063694d 8fe0a720 808ab1bc 00000000 00000000 8fe15b40 8fe0a720 8fe166e0 809932d0 8fdc7878 80993158 805e5170 00000001 805e03fc 805e04d0 805e0604 8fe1d960 8fe0f400 00000000 00000035 8fe0f400 00000000 ... Call Trace: [<804d7190>] regmap_read+0xc/0x6c [<805edabc>] hw_read+0x9c/0xac [<805e4abc>] dapm_set_path_status+0x114/0x3c8 [<805e5170>] snd_soc_dapm_add_route+0x400/0x64c [<805e6de8>] snd_soc_dapm_add_routes+0x68/0xcc [<805dfe94>] soc_probe_codec+0x150/0x214 [<805e2138>] snd_soc_register_card+0xcb8/0x1614 [<804c916c>] driver_probe_device+0x8c/0x248 [<804c93e4>] __driver_attach+0xbc/0xc4 [<804c734c>] bus_for_each_dev+0x54/0xa0 [<804c7de8>] bus_add_driver+0x1ac/0x2a4 [<804c9b60>] driver_register+0x90/0x1d0 [<809f6a2c>] do_one_initcall+0xf8/0x1d0 [<809f6c4c>] kernel_init+0x148/0x1e4 [<80106f88>] kernel_thread_helper+0x10/0x18 -- To unsubscribe from this list: send the line "unsubscribe alsa-devel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html