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authorAndi Kleen <ak@suse.de>2005-12-12 22:17:12 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2005-12-12 22:31:16 -0800
commitdf818a52fb5e64c72b21029fb9ba80583106932c (patch)
treefd71417e26af6dd57e26730541dd53f0609e08e3 /arch/x86_64
parentd6ece5491ae71ded1237f59def88bcd1b19b6f60 (diff)
downloadop-kernel-dev-df818a52fb5e64c72b21029fb9ba80583106932c.zip
op-kernel-dev-df818a52fb5e64c72b21029fb9ba80583106932c.tar.gz
[PATCH] x86_64: Fix 32bit thread coredumps
When a register set is passed in don't try to fix up the pointer. Noticed by Al Viro Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/x86_64')
-rw-r--r--arch/x86_64/ia32/ia32_binfmt.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/arch/x86_64/ia32/ia32_binfmt.c b/arch/x86_64/ia32/ia32_binfmt.c
index 830feb2..2b760d0 100644
--- a/arch/x86_64/ia32/ia32_binfmt.c
+++ b/arch/x86_64/ia32/ia32_binfmt.c
@@ -217,8 +217,7 @@ elf_core_copy_task_fpregs(struct task_struct *tsk, struct pt_regs *regs, elf_fpr
if (!tsk_used_math(tsk))
return 0;
if (!regs)
- regs = (struct pt_regs *)tsk->thread.rsp0;
- --regs;
+ regs = ((struct pt_regs *)tsk->thread.rsp0) - 1;
if (tsk == current)
unlazy_fpu(tsk);
set_fs(KERNEL_DS);
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