From a5969cabbb4660eab42b6ef0412cbbd1200cf14d Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Sat, 12 Oct 2024 07:10:09 +0000
Subject: [PATCH] 修改led为gpio
---
kernel/drivers/i2c/muxes/i2c-demux-pinctrl.c | 20 ++++++++++++--------
1 files changed, 12 insertions(+), 8 deletions(-)
diff --git a/kernel/drivers/i2c/muxes/i2c-demux-pinctrl.c b/kernel/drivers/i2c/muxes/i2c-demux-pinctrl.c
index 9ba9ce5..8e8688e 100644
--- a/kernel/drivers/i2c/muxes/i2c-demux-pinctrl.c
+++ b/kernel/drivers/i2c/muxes/i2c-demux-pinctrl.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Pinctrl based I2C DeMultiplexer
*
* Copyright (C) 2015-16 by Wolfram Sang, Sang Engineering <wsa@sang-engineering.com>
* Copyright (C) 2015-16 by Renesas Electronics Corporation
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; version 2 of the License.
*
* See the bindings doc for DTS setup and the sysfs doc for usage information.
* (look for filenames containing 'i2c-demux-pinctrl' in Documentation/)
@@ -99,6 +96,8 @@
/* Now fill out current adapter structure. cur_chan must be up to date */
priv->algo.master_xfer = i2c_demux_master_xfer;
+ if (adap->algo->master_xfer_atomic)
+ priv->algo.master_xfer_atomic = i2c_demux_master_xfer;
priv->algo.functionality = i2c_demux_functionality;
snprintf(priv->cur_adap.name, sizeof(priv->cur_adap.name),
@@ -219,8 +218,8 @@
return -EINVAL;
}
- priv = devm_kzalloc(&pdev->dev, sizeof(*priv)
- + num_chan * sizeof(struct i2c_demux_pinctrl_chan), GFP_KERNEL);
+ priv = devm_kzalloc(&pdev->dev, struct_size(priv, chan, num_chan),
+ GFP_KERNEL);
props = devm_kcalloc(&pdev->dev, num_chan, sizeof(*props), GFP_KERNEL);
@@ -244,6 +243,10 @@
props[i].name = devm_kstrdup(&pdev->dev, "status", GFP_KERNEL);
props[i].value = devm_kstrdup(&pdev->dev, "ok", GFP_KERNEL);
+ if (!props[i].name || !props[i].value) {
+ err = -ENOMEM;
+ goto err_rollback;
+ }
props[i].length = 3;
of_changeset_init(&priv->chan[i].chgset);
@@ -262,7 +265,7 @@
err = device_create_file(&pdev->dev, &dev_attr_available_masters);
if (err)
- goto err_rollback;
+ goto err_rollback_activation;
err = device_create_file(&pdev->dev, &dev_attr_current_master);
if (err)
@@ -272,8 +275,9 @@
err_rollback_available:
device_remove_file(&pdev->dev, &dev_attr_available_masters);
-err_rollback:
+err_rollback_activation:
i2c_demux_deactivate_master(priv);
+err_rollback:
for (j = 0; j < i; j++) {
of_node_put(priv->chan[j].parent_np);
of_changeset_destroy(&priv->chan[j].chgset);
--
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