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author | Bjorn Andersson <bjorn.andersson@linaro.org> | 2018-05-09 11:58:20 -0700 |
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committer | Bjorn Andersson <bjorn.andersson@linaro.org> | 2018-05-09 11:59:07 -0700 |
commit | 9935448e207cc9e7e5fd3c6aa3282ff503f263c4 (patch) | |
tree | a43f75f5dd940664f468418d59d3879ffff75b8f /drivers/acpi/button.c | |
parent | 41a5985f173bf1f93d2634fc93d8aa53683067f9 (diff) | |
parent | 75bc37fefc4471e718ba8e651aa74673d4e0a9eb (diff) | |
download | linux-9935448e207cc9e7e5fd3c6aa3282ff503f263c4.tar.gz linux-9935448e207cc9e7e5fd3c6aa3282ff503f263c4.tar.bz2 linux-9935448e207cc9e7e5fd3c6aa3282ff503f263c4.zip |
Merge tag 'v4.17-rc4' into rproc-next
Pick up fixes from rproc-v4.17-1
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Diffstat (limited to 'drivers/acpi/button.c')
-rw-r--r-- | drivers/acpi/button.c | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c index e1eee7a60fad..f1cc4f9d31cd 100644 --- a/drivers/acpi/button.c +++ b/drivers/acpi/button.c @@ -635,4 +635,26 @@ module_param_call(lid_init_state, NULL, 0644); MODULE_PARM_DESC(lid_init_state, "Behavior for reporting LID initial state"); -module_acpi_driver(acpi_button_driver); +static int acpi_button_register_driver(struct acpi_driver *driver) +{ + /* + * Modules such as nouveau.ko and i915.ko have a link time dependency + * on acpi_lid_open(), and would therefore not be loadable on ACPI + * capable kernels booted in non-ACPI mode if the return value of + * acpi_bus_register_driver() is returned from here with ACPI disabled + * when this driver is built as a module. + */ + if (acpi_disabled) + return 0; + + return acpi_bus_register_driver(driver); +} + +static void acpi_button_unregister_driver(struct acpi_driver *driver) +{ + if (!acpi_disabled) + acpi_bus_unregister_driver(driver); +} + +module_driver(acpi_button_driver, acpi_button_register_driver, + acpi_button_unregister_driver); |