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| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2010-02-04 20:56:52 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-03-07 17:04:50 -0800 |
| commit | ea79632d90754409b11388410bbe23b62394401d (patch) | |
| tree | 85786659ebf3ad0908a598482fb25ea68731c7fb /drivers/platform/x86/hp-wmi.c | |
| parent | c2e13037e6794bd0d9de3f9ecabf5615f15c160b (diff) | |
| download | kernel_samsung_smdk4412-ea79632d90754409b11388410bbe23b62394401d.zip kernel_samsung_smdk4412-ea79632d90754409b11388410bbe23b62394401d.tar.gz kernel_samsung_smdk4412-ea79632d90754409b11388410bbe23b62394401d.tar.bz2 | |
x86: move hp-wmi's probe function to .devinit.text
A pointer to hp_wmi_bios_setup is passed to the core via
platform_driver_register and so the function must not disappear when the
.init sections are discarded. Otherwise (if also having HOTPLUG=y)
unbinding and binding a device to the driver via sysfs will result in an
oops as does a device being registered late.
An alternative to this patch is using platform_driver_probe instead of
platform_driver_register plus removing the pointer to the probe function
from the struct platform_driver.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Frans Pop <elendil@planet.nl>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Len Brown <lenb@kernel.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/platform/x86/hp-wmi.c')
| -rw-r--r-- | drivers/platform/x86/hp-wmi.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/platform/x86/hp-wmi.c b/drivers/platform/x86/hp-wmi.c index 3aa57da..7ccf33c 100644 --- a/drivers/platform/x86/hp-wmi.c +++ b/drivers/platform/x86/hp-wmi.c @@ -57,7 +57,7 @@ enum hp_wmi_radio { HPWMI_WWAN = 2, }; -static int __init hp_wmi_bios_setup(struct platform_device *device); +static int __devinit hp_wmi_bios_setup(struct platform_device *device); static int __exit hp_wmi_bios_remove(struct platform_device *device); static int hp_wmi_resume_handler(struct device *device); @@ -447,7 +447,7 @@ static void cleanup_sysfs(struct platform_device *device) device_remove_file(&device->dev, &dev_attr_tablet); } -static int __init hp_wmi_bios_setup(struct platform_device *device) +static int __devinit hp_wmi_bios_setup(struct platform_device *device) { int err; int wireless = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0, 0); |