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MIPS: fix uretprobe implementation

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commit db06068a4fd44a57b642b369d2a295b8448f6b65 upstream.

arch_uretprobe_hijack_return_addr should replace the return address for
a call with a trampoline address.

Signed-off-by: Marcin Nowakowski <marcin.nowakowski@imgtec.com>
Fixes: 40e084a506eb ('MIPS: Add uprobes support.')
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/14298/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Marcin Nowakowski 2016-09-22 15:38:31 +02:00 committed by Greg Kroah-Hartman
parent 824865e1f7
commit bb517c45cb
1 changed files with 1 additions and 1 deletions
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2
arch/mips/kernel/uprobes.c
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@ -257,7 +257,7 @@ unsigned long arch_uretprobe_hijack_return_addr(
ra = regs->regs[31];
/* Replace the return address with the trampoline address */
regs->regs[31] = ra;
regs->regs[31] = trampoline_vaddr;
return ra;
}