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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 <[email protected]>
Suggested-by: David Vrabel <[email protected]>
Acked-by: Greg Kroah-Hartman <[email protected]>
Signed-off-by: David Vrabel <[email protected]>
This commit is contained in:
Konrad Rzeszutek Wilk 2014-12-03 16:40:27 -05:00 • committed by David Vrabel
commit ac8010221d
2 changed files with 6 additions and 1 deletions
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drivers/xen/xen-pciback/pci_stub.c
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@ -278,7 +278,7 @@ void pcistub_put_pci_dev(struct pci_dev *dev)
/* Cleanup our device
* (so it's ready for the next domain)
*/
lockdep_assert_held(&dev->dev.mutex);
device_lock_assert(&dev->dev);
__pci_reset_function_locked(dev);
pci_restore_state(dev);