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Commit fc9d0cd9 authored by Wolfram Sang's avatar Wolfram Sang
Browse files

Merge branch 'i2c-mux/for-current' of https://github.com/peda-r/i2c-mux into i2c/for-current 

Pull bugfixes from the i2c mux subsubsystem:

This fixes an old bug in resource cleanup on failure in i2c-mux-reg and
a new log spamming bug from this merge window in the i2c-mux core.
parents 2ea659a9 9fce894d

drivers/i2c/i2c-mux.c

+16 −10
Original line number Diff line number Diff line
@@ -395,18 +395,20 @@ int i2c_mux_add_adapter(struct i2c_mux_core *muxc, 
	if (force_nr) {

		priv->adap.nr = force_nr;

		ret = i2c_add_numbered_adapter(&priv->adap);

		if (ret < 0) {

			dev_err(&parent->dev,

				"failed to add mux-adapter %u as bus %u (error=%d)\n",

				chan_id, force_nr, ret);

			goto err_free_priv;

		}

	} else {

		ret = i2c_add_adapter(&priv->adap);

		if (ret < 0) {

			dev_err(&parent->dev,

				"failed to add mux-adapter %u (error=%d)\n",

				chan_id, ret);

			goto err_free_priv;

		}

	if (ret < 0) {

		kfree(priv);

		return ret;

	}



	WARN(sysfs_create_link(&priv->adap.dev.kobj, &muxc->dev->kobj,
@@ -422,6 +424,10 @@ int i2c_mux_add_adapter(struct i2c_mux_core *muxc, 


	muxc->adapter[muxc->num_adapters++] = &priv->adap;

	return 0;



err_free_priv:

	kfree(priv);

	return ret;

}

EXPORT_SYMBOL_GPL(i2c_mux_add_adapter);

drivers/i2c/muxes/i2c-mux-reg.c

+14 −7
Original line number Diff line number Diff line
@@ -196,20 +196,25 @@ static int i2c_mux_reg_probe(struct platform_device *pdev) 
		res = platform_get_resource(pdev, IORESOURCE_MEM, 0);

		mux->data.reg_size = resource_size(res);

		mux->data.reg = devm_ioremap_resource(&pdev->dev, res);

		if (IS_ERR(mux->data.reg))

			return PTR_ERR(mux->data.reg);

		if (IS_ERR(mux->data.reg)) {

			ret = PTR_ERR(mux->data.reg);

			goto err_put_parent;

		}

	}



	if (mux->data.reg_size != 4 && mux->data.reg_size != 2 &&

	    mux->data.reg_size != 1) {

		dev_err(&pdev->dev, "Invalid register size\n");

		return -EINVAL;

		ret = -EINVAL;

		goto err_put_parent;

	}



	muxc = i2c_mux_alloc(parent, &pdev->dev, mux->data.n_values, 0, 0,

			     i2c_mux_reg_select, NULL);

	if (!muxc)

		return -ENOMEM;

	if (!muxc) {

		ret = -ENOMEM;

		goto err_put_parent;

	}

	muxc->priv = mux;



	platform_set_drvdata(pdev, muxc);
@@ -223,7 +228,7 @@ static int i2c_mux_reg_probe(struct platform_device *pdev) 


		ret = i2c_mux_add_adapter(muxc, nr, mux->data.values[i], class);

		if (ret)

			goto add_adapter_failed;

			goto err_del_mux_adapters;

	}



	dev_dbg(&pdev->dev, "%d port mux on %s adapter\n",
@@ -231,8 +236,10 @@ static int i2c_mux_reg_probe(struct platform_device *pdev) 


	return 0;



add_adapter_failed:

err_del_mux_adapters:

	i2c_mux_del_adapters(muxc);

err_put_parent:

	i2c_put_adapter(parent);



	return ret;

}