From 1543e317f1da31b75942316931e8f491a8920811 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Thu, 04 Jan 2024 10:08:02 +0000
Subject: [PATCH] disable FB
---
kernel/arch/powerpc/kernel/ptrace/ptrace-view.c | 6 ++++++
1 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/kernel/arch/powerpc/kernel/ptrace/ptrace-view.c b/kernel/arch/powerpc/kernel/ptrace/ptrace-view.c
index 7e6478e..67c126d 100644
--- a/kernel/arch/powerpc/kernel/ptrace/ptrace-view.c
+++ b/kernel/arch/powerpc/kernel/ptrace/ptrace-view.c
@@ -298,6 +298,9 @@
static int ppr_get(struct task_struct *target, const struct user_regset *regset,
struct membuf to)
{
+ if (!target->thread.regs)
+ return -EINVAL;
+
return membuf_write(&to, &target->thread.regs->ppr, sizeof(u64));
}
@@ -305,6 +308,9 @@
unsigned int pos, unsigned int count, const void *kbuf,
const void __user *ubuf)
{
+ if (!target->thread.regs)
+ return -EINVAL;
+
return user_regset_copyin(&pos, &count, &kbuf, &ubuf,
&target->thread.regs->ppr, 0, sizeof(u64));
}
--
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