From d0e51022a025ca5350fafb8e413a6fe5d4baf833 Mon Sep 17 00:00:00 2001
From: Yang Yingliang <yangyingliang@huawei.com>
Date: Fri, 1 Jul 2022 15:41:53 +0800
Subject: [PATCH] hwmon: (ibmaem) don't call platform_device_del() if platform_device_add() fails
Git-commit: d0e51022a025ca5350fafb8e413a6fe5d4baf833
Patch-mainline: v5.19-rc5
References: git-fixes
If platform_device_add() fails, it no need to call platform_device_del(), split
platform_device_unregister() into platform_device_del/put(), so platform_device_put()
can be called separately.
Fixes: 8808a793f052 ("ibmaem: new driver for power/energy/temp meters in IBM System X hardware")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20220701074153.4021556-1-yangyingliang@huawei.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/hwmon/ibmaem.c | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)
--- a/drivers/hwmon/ibmaem.c
+++ b/drivers/hwmon/ibmaem.c
@@ -550,7 +550,7 @@ static int aem_init_aem1_inst(struct aem
res = platform_device_add(data->pdev);
if (res)
- goto ipmi_err;
+ goto dev_add_err;
platform_set_drvdata(data->pdev, data);
@@ -598,7 +598,9 @@ hwmon_reg_err:
ipmi_destroy_user(data->ipmi.user);
ipmi_err:
platform_set_drvdata(data->pdev, NULL);
- platform_device_unregister(data->pdev);
+ platform_device_del(data->pdev);
+dev_add_err:
+ platform_device_put(data->pdev);
dev_err:
ida_simple_remove(&aem_ida, data->id);
id_err:
@@ -690,7 +692,7 @@ static int aem_init_aem2_inst(struct aem
res = platform_device_add(data->pdev);
if (res)
- goto ipmi_err;
+ goto dev_add_err;
platform_set_drvdata(data->pdev, data);
@@ -738,7 +740,9 @@ hwmon_reg_err:
ipmi_destroy_user(data->ipmi.user);
ipmi_err:
platform_set_drvdata(data->pdev, NULL);
- platform_device_unregister(data->pdev);
+ platform_device_del(data->pdev);
+dev_add_err:
+ platform_device_put(data->pdev);
dev_err:
ida_simple_remove(&aem_ida, data->id);
id_err: