linux-kernel - [PATCH] i2c: immediately mark ourselves as registered

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Date:	Mon, 14 Mar 2016 10:53:26 +0100
From:	Wolfram Sang <wsa@...-dreams.de>
To:	linux-i2c@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org,
	Sudip Mukherjee <sudipm.mukherjee@...il.com>,
	Wolfram Sang <wsa@...-dreams.de>,
	Thierry Reding <thierry.reding@...il.com>
Subject: [PATCH] i2c: immediately mark ourselves as registered

Mark the i2c bus as registered right after the the bus_register call,
not at the end of init. Otherwise, we can't register our own dummy
driver.

Reported-by: Thierry Reding <thierry.reding@...il.com>
Signed-off-by: Wolfram Sang <wsa@...-dreams.de>
Fixes: 95026658c46ea2 ("i2c: do not use internal data from driver core")
---
 drivers/i2c/i2c-core.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index f4726cdbb06a1e..f267b238c6730c 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -2105,6 +2105,9 @@ static int __init i2c_init(void)
 	retval = bus_register(&i2c_bus_type);
 	if (retval)
 		return retval;
+
+	is_registered = true;
+
 #ifdef CONFIG_I2C_COMPAT
 	i2c_adapter_compat_class = class_compat_register("i2c-adapter");
 	if (!i2c_adapter_compat_class) {
@@ -2119,7 +2122,6 @@ static int __init i2c_init(void)
 	if (IS_ENABLED(CONFIG_OF_DYNAMIC))
 		WARN_ON(of_reconfig_notifier_register(&i2c_of_notifier));
 
-	is_registered = true;
 	return 0;
 
 class_err:
-- 
2.7.0