From 748e4f3d702def1a4bff191e0cf93b6a05340f01 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 10 May 2024 07:41:34 +0000
Subject: [PATCH] add gpio led uart
---
kernel/arch/arm/mach-mmp/sram.c | 28 +++++++++++++---------------
1 files changed, 13 insertions(+), 15 deletions(-)
diff --git a/kernel/arch/arm/mach-mmp/sram.c b/kernel/arch/arm/mach-mmp/sram.c
index ba91e4f..ecc46c3 100644
--- a/kernel/arch/arm/mach-mmp/sram.c
+++ b/kernel/arch/arm/mach-mmp/sram.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* linux/arch/arm/mach-mmp/sram.c
*
@@ -7,11 +8,6 @@
* All Rights Reserved
*
* Add for mmp sram support - Leo Yan <leoy@marvell.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
*/
#include <linux/module.h>
@@ -76,6 +72,8 @@
if (!info)
return -ENOMEM;
+ platform_set_drvdata(pdev, info);
+
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (res == NULL) {
dev_err(&pdev->dev, "no memory resource defined\n");
@@ -111,8 +109,6 @@
list_add(&info->node, &sram_bank_list);
mutex_unlock(&sram_lock);
- platform_set_drvdata(pdev, info);
-
dev_info(&pdev->dev, "initialized\n");
return 0;
@@ -131,17 +127,19 @@
struct sram_bank_info *info;
info = platform_get_drvdata(pdev);
- if (info == NULL)
- return -ENODEV;
- mutex_lock(&sram_lock);
- list_del(&info->node);
- mutex_unlock(&sram_lock);
+ if (info->sram_size) {
+ mutex_lock(&sram_lock);
+ list_del(&info->node);
+ mutex_unlock(&sram_lock);
- gen_pool_destroy(info->gpool);
- iounmap(info->sram_virt);
- kfree(info->pool_name);
+ gen_pool_destroy(info->gpool);
+ iounmap(info->sram_virt);
+ kfree(info->pool_name);
+ }
+
kfree(info);
+
return 0;
}
--
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