diff options
Diffstat (limited to 'arch/powerpc/platforms/powernv/opal-powercap.c')
| -rw-r--r-- | arch/powerpc/platforms/powernv/opal-powercap.c | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/arch/powerpc/platforms/powernv/opal-powercap.c b/arch/powerpc/platforms/powernv/opal-powercap.c index d90ee4fc2c6a..ea917266aa17 100644 --- a/arch/powerpc/platforms/powernv/opal-powercap.c +++ b/arch/powerpc/platforms/powernv/opal-powercap.c @@ -1,12 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * PowerNV OPAL Powercap interface * * Copyright 2017 IBM Corp. - * - * 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. */ #define pr_fmt(fmt) "opal-powercap: " fmt @@ -17,7 +13,7 @@ #include <asm/opal.h> -DEFINE_MUTEX(powercap_mutex); +static DEFINE_MUTEX(powercap_mutex); static struct kobject *powercap_kobj; @@ -133,7 +129,7 @@ out_token: return ret; } -static void powercap_add_attr(int handle, const char *name, +static void __init powercap_add_attr(int handle, const char *name, struct powercap_attr *attr) { attr->handle = handle; @@ -157,7 +153,7 @@ void __init opal_powercap_init(void) pcaps = kcalloc(of_get_child_count(powercap), sizeof(*pcaps), GFP_KERNEL); if (!pcaps) - return; + goto out_put_powercap; powercap_kobj = kobject_create_and_add("powercap", opal_kobj); if (!powercap_kobj) { @@ -200,6 +196,12 @@ void __init opal_powercap_init(void) j = 0; pcaps[i].pg.name = kasprintf(GFP_KERNEL, "%pOFn", node); + if (!pcaps[i].pg.name) { + kfree(pcaps[i].pattrs); + kfree(pcaps[i].pg.attrs); + goto out_pcaps_pattrs; + } + if (has_min) { powercap_add_attr(min, "powercap-min", &pcaps[i].pattrs[j]); @@ -230,6 +232,7 @@ void __init opal_powercap_init(void) } i++; } + of_node_put(powercap); return; @@ -240,6 +243,9 @@ out_pcaps_pattrs: kfree(pcaps[i].pg.name); } kobject_put(powercap_kobj); + of_node_put(node); out_pcaps: kfree(pcaps); +out_put_powercap: + of_node_put(powercap); } |