Patch "i2c: s3c2410: enable RuntimePM before registering to the core" has been added to the 4.2-stable tree

This is a note to let you know that I've just added the patch titled

i2c: s3c2410: enable RuntimePM before registering to the core

to the 4.2-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
i2c-s3c2410-enable-runtimepm-before-registering-to-the-core.patch
and it can be found in the queue-4.2 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Wolfram Sang <[email protected]>
Date: Sat, 10 Oct 2015 08:24:23 +0100
Subject: i2c: s3c2410: enable RuntimePM before registering to the core

From: Wolfram Sang <[email protected]>

commit eadd709f5d2e8aebb1b7bf49460e97a68d81a9b0 upstream.

The core may register clients attached to this master which may use funtionality from the master. So, RuntimePM must be enabled before, otherwise this will fail. While here, move drvdata, too.

---
 drivers/i2c/busses/i2c-s3c2410.c |    8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

@@ -1243,17 +1243,19 @@ static int s3c24xx_i2c_probe(struct plat
 	i2c->adap.nr = i2c->pdata->bus_num;
 	i2c->adap.dev.of_node = pdev->dev.of_node;
 
+	platform_set_drvdata(pdev, i2c);
+
+	pm_runtime_enable(&pdev->dev);
+
 	ret = i2c_add_numbered_adapter(&i2c->adap);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "failed to add bus to i2c core\n");
+		pm_runtime_disable(&pdev->dev);
 		s3c24xx_i2c_deregister_cpufreq(i2c);
 		clk_unprepare(i2c->clk);
 		return ret;
 	}
 
-	platform_set_drvdata(pdev, i2c);
-
-	pm_runtime_enable(&pdev->dev);
 	pm_runtime_enable(&i2c->adap.dev);
 
 	dev_info(&pdev->dev, "%s: S3C I2C adapter\n", dev_name(&i2c->adap.dev));

Patches currently in stable-queue which might be from [email protected] are

queue-4.2/i2c-rcar-enable-runtimepm-before-registering-to-the-core.patch queue-4.2/i2c-s3c2410-enable-runtimepm-before-registering-to-the-core.patch queue-4.2/i2c-designware-platdrv-enable-runtimepm-before-registering-to-the-core.patch