[V4L2] decrement struct v4l2_device refcount on device unregister
Commit Message
commit bedf8bcf6b4f90a6e31add3721a2e71877289381 introduced reference counting
for struct v4l2_device.
In v4l2_device_register() a call to kref_init() initializes reference count to 1,
but in v4l2_device_unregister() there is no corresponding decrement.
End result is that reference count never reaches zero and v4l2_device_release()
is never called, not even on videodev module unload.
Fix this by adding reference counter decrement to v4l2_device_unregister().
Resending due to spurious newlines around the patch in previous message.
Signed-off-by: Maciej Szmigiero <mhej@o2.pl>
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@@ -131,6 +131,8 @@ void v4l2_device_unregister(struct v4l2_device *v4l2_dev)
}
#endif
}
+
+ v4l2_device_put(v4l2_dev);
}
EXPORT_SYMBOL_GPL(v4l2_device_unregister);