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path: root/drivers/s390/cio/ccwgroup.c
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Diffstat (limited to 'drivers/s390/cio/ccwgroup.c')
-rw-r--r--drivers/s390/cio/ccwgroup.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/s390/cio/ccwgroup.c b/drivers/s390/cio/ccwgroup.c
index 5535312602af..db9c854088bc 100644
--- a/drivers/s390/cio/ccwgroup.c
+++ b/drivers/s390/cio/ccwgroup.c
@@ -561,6 +561,12 @@ static struct bus_type ccwgroup_bus_type = {
.pm = &ccwgroup_pm_ops,
};
+bool dev_is_ccwgroup(struct device *dev)
+{
+ return dev->bus == &ccwgroup_bus_type;
+}
+EXPORT_SYMBOL(dev_is_ccwgroup);
+
/**
* ccwgroup_driver_register() - register a ccw group driver
* @cdriver: driver to be registered