driver core: Provide an wrapper around the mutex to do lockdep warnings
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>
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@ -278,7 +278,7 @@ void pcistub_put_pci_dev(struct pci_dev *dev)
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/* Cleanup our device
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* (so it's ready for the next domain)
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*/
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lockdep_assert_held(&dev->dev.mutex);
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device_lock_assert(&dev->dev);
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__pci_reset_function_locked(dev);
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pci_restore_state(dev);
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@ -911,6 +911,11 @@ static inline void device_unlock(struct device *dev)
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mutex_unlock(&dev->mutex);
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}
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static inline void device_lock_assert(struct device *dev)
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{
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lockdep_assert_held(&dev->mutex);
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}
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void driver_init(void);
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/*
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