diff options
| author | Alexey Kardashevskiy <aik@ozlabs.ru> | 2013-02-14 21:44:23 +0400 |
|---|---|---|
| committer | Michael Ellerman <michael@ellerman.id.au> | 2013-04-18 07:03:57 +0400 |
| commit | ee4a3916614829914830bc4371358f4d4a63c4d9 (patch) | |
| tree | ba1c65ba0a58933b8d9d43fe0374bdbc775338ad /arch/powerpc/include/asm/ptrace.h | |
| parent | 3cc33d50f52521760da29ebd9db239741da7f21a (diff) | |
| download | linux-ee4a3916614829914830bc4371358f4d4a63c4d9.tar.xz | |
powerpc: fixing ptrace_get_reg to return an error
Currently ptrace_get_reg returns error as a value
what make impossible to tell whether it is a correct value or error code.
The patch adds a parameter which points to the real return data and
returns an error code.
As get_user_msr() never fails and it is used in multiple places so it has not
been changed by this patch.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Acked-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/include/asm/ptrace.h')
| -rw-r--r-- | arch/powerpc/include/asm/ptrace.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/ptrace.h b/arch/powerpc/include/asm/ptrace.h index 5f995681bc1d..becc08e6a65c 100644 --- a/arch/powerpc/include/asm/ptrace.h +++ b/arch/powerpc/include/asm/ptrace.h @@ -92,7 +92,8 @@ static inline long regs_return_value(struct pt_regs *regs) } while(0) struct task_struct; -extern unsigned long ptrace_get_reg(struct task_struct *task, int regno); +extern int ptrace_get_reg(struct task_struct *task, int regno, + unsigned long *data); extern int ptrace_put_reg(struct task_struct *task, int regno, unsigned long data); |