[PATCH v1] media: dvb: Add devm_dvb_register_adapter

[Marc Gonzalez <marc.w.gonzalez@free.fr>]

Add devm* variant for automagic resource release.
---
 drivers/media/dvb-core/dvbdev.c | 21 +++++++++++++++++++++
 include/media/dvbdev.h          |  3 +++
 2 files changed, 24 insertions(+)

diff --git a/drivers/media/dvb-core/dvbdev.c b/drivers/media/dvb-core/dvbdev.c
index a3393cd4e584..c7a5302e8840 100644
--- a/drivers/media/dvb-core/dvbdev.c
+++ b/drivers/media/dvb-core/dvbdev.c
@@ -885,6 +885,27 @@ int dvb_register_adapter(struct dvb_adapter *adap, const char *name,
 }
 EXPORT_SYMBOL(dvb_register_adapter);
 
+static void unregister_adapter(void *adap)
+{
+	dvb_unregister_adapter(adap);
+}
+
+int devm_dvb_register_adapter(struct device *dev, struct dvb_adapter *adap,
+		const char *name, struct module *module, short *adapter_nums)
+{
+	int v1, v2;
+
+	v1 = dvb_register_adapter(adap, name, module, dev, adapter_nums);
+	if (v1 < 0)
+		return v1;
+
+	v2 = devm_add_action_or_reset(dev, unregister_adapter, adap);
+	if (v2 < 0)
+		return v2;
+
+	return v1;
+}
+EXPORT_SYMBOL(devm_dvb_register_adapter);
 
 int dvb_unregister_adapter(struct dvb_adapter *adap)
 {
diff --git a/include/media/dvbdev.h b/include/media/dvbdev.h
index 551325858de3..32f8d1626319 100644
--- a/include/media/dvbdev.h
+++ b/include/media/dvbdev.h
@@ -202,6 +202,9 @@ int dvb_register_adapter(struct dvb_adapter *adap, const char *name,
 			 struct module *module, struct device *device,
 			 short *adapter_nums);
 
+int devm_dvb_register_adapter(struct device *dev, struct dvb_adapter *adap,
+		const char *name, struct module *module, short *adapter_nums);
+
 /**
  * dvb_unregister_adapter - Unregisters a DVB adapter
  *
-- 
2.17.1