提交 622532bb 编写于 作者: W Witold Szczeponik 提交者: Rafael J. Wysocki

ACPI / PNP: add two IDs to list for PNPACPI device enumeration

Commit eec15edb (ACPI / PNP: use device ID list for PNPACPI device
enumeration) changed the way how ACPI devices are enumerated and when
they are added to the PNP bus.

However, it broke the sound card support on (at least) a vintage
IBM ThinkPad 600E: with said commit applied, two of the necessary
"CSC01xx" devices are not added to the PNP bus and hence can not be
found during the initialization of the "snd-cs4236" module.  As a
consequence, loading "snd-cs4236" causes null pointer exceptions.
The attached patch fixes the problem end re-enables sound on the
IBM ThinkPad 600E.

Fixes: eec15edb (ACPI / PNP: use device ID list for PNPACPI device enumeration)
Signed-off-by: NWitold Szczeponik <Witold.Szczeponik@gmx.net>
Cc: 3.16+ <stable@vger.kernel.org> # 3.16+
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
上级 5ebe6afa
...@@ -304,6 +304,8 @@ static const struct acpi_device_id acpi_pnp_device_ids[] = { ...@@ -304,6 +304,8 @@ static const struct acpi_device_id acpi_pnp_device_ids[] = {
{"PNPb006"}, {"PNPb006"},
/* cs423x-pnpbios */ /* cs423x-pnpbios */
{"CSC0100"}, {"CSC0100"},
{"CSC0103"},
{"CSC0110"},
{"CSC0000"}, {"CSC0000"},
{"GIM0100"}, /* Guillemot Turtlebeach something appears to be cs4232 compatible */ {"GIM0100"}, /* Guillemot Turtlebeach something appears to be cs4232 compatible */
/* es18xx-pnpbios */ /* es18xx-pnpbios */
......
Markdown is supported
0% .
You are about to add 0 people to the discussion. Proceed with caution.
先完成此消息的编辑!
想要评论请 注册