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authorKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2014-12-03 16:40:27 -0500
committerDavid Vrabel <david.vrabel@citrix.com>2014-12-04 12:41:59 +0000
commitac8010221d3fa8697151dfe9a1bb2c504adc68c1 (patch)
tree6f29ae15005f635809f6b7be8f964cfce29001ec /include
parente8801a7418dda995a70f30874aef77e6d064828e (diff)
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>
Diffstat (limited to 'include')
-rw-r--r--include/linux/device.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/device.h b/include/linux/device.h
index ce1f21608b16..41d6a7555c6b 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -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);
/*