[PATCH v8 3/9] i2c: core: call of_i2c_setup_smbus_alert in i2c_register_adapter

[Phil Reid <preid-qgqNFa1JUf/o2iN0hyhwsIdd74u8MsAO@public.gmane.org>]

Add a call to of_i2c_setup_smbus_alert when a i2c adapter is registered
so the the smbalert driver can be registered.

Signed-off-by: Phil Reid <preid-qgqNFa1JUf/o2iN0hyhwsIdd74u8MsAO@public.gmane.org>
---
 drivers/i2c/i2c-core-base.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/i2c/i2c-core-base.c b/drivers/i2c/i2c-core-base.c
index 033b7b9..7006486 100644
--- a/drivers/i2c/i2c-core-base.c
+++ b/drivers/i2c/i2c-core-base.c
@@ -29,6 +29,7 @@
 #include <linux/errno.h>
 #include <linux/gpio.h>
 #include <linux/i2c.h>
+#include <linux/i2c-smbus.h>
 #include <linux/idr.h>
 #include <linux/init.h>
 #include <linux/irqflags.h>
@@ -1273,6 +1274,10 @@ static int i2c_register_adapter(struct i2c_adapter *adap)
 		goto out_list;
 	}
 
+	res = of_i2c_setup_smbus_alert(adap);
+	if (res)
+		goto out_reg;
+
 	dev_dbg(&adap->dev, "adapter [%s] registered\n", adap->name);
 
 	pm_runtime_no_callbacks(&adap->dev);
@@ -1304,6 +1309,10 @@ static int i2c_register_adapter(struct i2c_adapter *adap)
 
 	return 0;
 
+out_reg:
+	init_completion(&adap->dev_released);
+	device_unregister(&adap->dev);
+	wait_for_completion(&adap->dev_released);
 out_list:
 	mutex_lock(&core_lock);
 	idr_remove(&i2c_adapter_idr, adap->nr);
-- 
1.8.3.1

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