Reference in a new issue

Blame

Copy permalink

Reference in a new issue

Copy permalink

Rafael J. Wysocki 98b8e4e5c1 platform/x86: wmi: Call acpi_wmi_init() later ... Calling acpi_wmi_init() at the subsys_initcall() level causes ordering issues to appear on some systems and they are difficult to reproduce, because there is no guaranteed ordering between subsys_initcall() calls, so they may occur in different orders on different systems. In particular, commit 86d9f48534 (mm/slab: fix kmemcg cache creation delayed issue) exposed one of these issues where genl_init() and acpi_wmi_init() are both called at the same initcall level, but the former must run before the latter so as to avoid a NULL pointer dereference. For this reason, move the acpi_wmi_init() invocation to the initcall_sync level which should still be early enough for things to work correctly in the WMI land. Link: https://marc.info/?t=151274596700002&r=1&w=2 Reported-by: Jonathan McDowell <noodles@earth.li> Reported-by: Joonsoo Kim <iamjoonsoo.kim@lge.com> Tested-by: Jonathan McDowell <noodles@earth.li> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>		History 2018-01-08 10:47:48 -08:00
..
chrome	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
goldfish	Merge 4.12-rc5 into char-misc-next	2017-06-12 08:18:10 +02:00
mips	MIPS: Loongson-3: Support 4 packages in CPU Hwmon driver	2017-06-29 02:42:22 +02:00
olpc	platform/olpc: Make ec explicitly non-modular	2016-08-28 22:31:52 -07:00
x86	platform/x86: wmi: Call acpi_wmi_init() later	2018-01-08 10:47:48 -08:00
Kconfig	goldfish: refactor goldfish platform configs	2016-01-28 23:34:36 -08:00
Makefile	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00