[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH v5 3/6] 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. CC: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx> --- drivers/xen/xen-pciback/pci_stub.c | 2 +- include/linux/device.h | 5 +++++ 2 files changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/xen/xen-pciback/pci_stub.c b/drivers/xen/xen-pciback/pci_stub.c index d4cae5b..f9bf793 100644 --- a/drivers/xen/xen-pciback/pci_stub.c +++ b/drivers/xen/xen-pciback/pci_stub.c @@ -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); diff --git a/include/linux/device.h b/include/linux/device.h index af424ac..1d29fb2 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -908,6 +908,11 @@ 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); /* -- 1.9.3 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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