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>
diff --git a/include/linux/device.h b/include/linux/device.h
index ce1f2160..41d6a75 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -911,6 +911,11 @@
mutex_unlock(&dev->mutex);
}
+static inline void device_lock_assert(struct device *dev)
+{
+ lockdep_assert_held(&dev->mutex);
+}
+
void driver_init(void);
/*