diff options
Diffstat (limited to 'arch/powerpc/platforms/pseries/reconfig.c')
| -rw-r--r-- | arch/powerpc/platforms/pseries/reconfig.c | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/arch/powerpc/platforms/pseries/reconfig.c b/arch/powerpc/platforms/pseries/reconfig.c index 0e0208117e77..599bd2c78514 100644 --- a/arch/powerpc/platforms/pseries/reconfig.c +++ b/arch/powerpc/platforms/pseries/reconfig.c @@ -1,23 +1,19 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * pSeries_reconfig.c - support for dynamic reconfiguration (including PCI * Hotplug and Dynamic Logical Partitioning on RPA platforms). * * Copyright (C) 2005 Nathan Lynch * Copyright (C) 2005 IBM Corporation - * - * - * 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/kernel.h> #include <linux/notifier.h> #include <linux/proc_fs.h> +#include <linux/security.h> #include <linux/slab.h> #include <linux/of.h> -#include <asm/prom.h> #include <asm/machdep.h> #include <linux/uaccess.h> #include <asm/mmu.h> @@ -366,6 +362,10 @@ static ssize_t ofdt_write(struct file *file, const char __user *buf, size_t coun char *kbuf; char *tmp; + rv = security_locked_down(LOCKDOWN_DEVICE_TREE); + if (rv) + return rv; + kbuf = memdup_user_nul(buf, count); if (IS_ERR(kbuf)) return PTR_ERR(kbuf); @@ -395,9 +395,9 @@ out: return rv ? rv : count; } -static const struct file_operations ofdt_fops = { - .write = ofdt_write, - .llseek = noop_llseek, +static const struct proc_ops ofdt_proc_ops = { + .proc_write = ofdt_write, + .proc_lseek = noop_llseek, }; /* create /proc/powerpc/ofdt write-only by root */ @@ -405,7 +405,7 @@ static int proc_ppc64_create_ofdt(void) { struct proc_dir_entry *ent; - ent = proc_create("powerpc/ofdt", 0200, NULL, &ofdt_fops); + ent = proc_create("powerpc/ofdt", 0200, NULL, &ofdt_proc_ops); if (ent) proc_set_size(ent, 0); |