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driver core: Provide an wrapper around the mutex to do lockdep warnings

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Instead of open-coding it in drivers that want to double check
that their functions are indeed holding the device lock.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Suggested-by: David Vrabel <david.vrabel@citrix.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
This commit is contained in:
Konrad Rzeszutek Wilk
2014-12-03 16:40:27 -05:00
committed by David Vrabel
parent e8801a7418
commit ac8010221d
2 changed files with 6 additions and 1 deletions
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5
include/linux/device.h
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@@ -911,6 +911,11 @@ static inline void device_unlock(struct device *dev)
mutex_unlock(&dev->mutex);
}
static inline void device_lock_assert(struct device *dev)
{
lockdep_assert_held(&dev->mutex);
}
void driver_init(void);
/*