981d6435af
The 'userspace' governor adds a sysfs entry, which is removed when
the governor is changed, or the devfreq device is released. However,
when the latter occurs via device_unregister(), device_del() is
called first, which removes the sysfs entries recursively and deletes
the kobject.
This means we get an Oops when the governor calls
sysfs_remove_group() on the deleted kobject. Fix this by only doing
the call when kobj *hasn't* been kobject_del()'d.
Note that we can't just remove the call to sysfs_remove_group()
entirely - it's needed for when the governor is changed to one which
doesn't need a sysfs entry.
Change-Id: I2ddad9d062ebb1a64582a15cd5b9efc5882bc848
Signed-off-by: Chris Diamand <chris.diamand@arm.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
(cherry picked from commit
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|---|---|---|
| .. | ||
| event | ||
| exynos | ||
| ddr_rk3368.c | ||
| devfreq-event.c | ||
| devfreq.c | ||
| governor.h | ||
| governor_performance.c | ||
| governor_powersave.c | ||
| governor_simpleondemand.c | ||
| governor_userspace.c | ||
| Kconfig | ||
| Makefile | ||
| rockchip_bus.c | ||
| rockchip_dmc.c | ||
| tegra-devfreq.c | ||