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/busses/i2c-xgene-slimpro.c |   18 ++++--------------
 1 files changed, 4 insertions(+), 14 deletions(-)

diff --git a/kernel/drivers/i2c/busses/i2c-xgene-slimpro.c b/kernel/drivers/i2c/busses/i2c-xgene-slimpro.c
index a7ac746..76e9dcd 100644
--- a/kernel/drivers/i2c/busses/i2c-xgene-slimpro.c
+++ b/kernel/drivers/i2c/busses/i2c-xgene-slimpro.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  * X-Gene SLIMpro I2C Driver
  *
@@ -5,22 +6,8 @@
  * Author: Feng Kan <fkan@apm.com>
  * Author: Hieu Le <hnle@apm.com>
  *
- * 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; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see <http://www.gnu.org/licenses/>.
- *
  * This driver provides support for X-Gene SLIMpro I2C device access
  * using the APM X-Gene SLIMpro mailbox driver.
- *
  */
 #include <acpi/pcc.h>
 #include <linux/acpi.h>
@@ -321,6 +308,9 @@
 	u32 msg[3];
 	int rc;
 
+	if (writelen > I2C_SMBUS_BLOCK_MAX)
+		return -EINVAL;
+
 	memcpy(ctx->dma_buffer, data, writelen);
 	paddr = dma_map_single(ctx->dev, ctx->dma_buffer, writelen,
 			       DMA_TO_DEVICE);

--
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