syscall_get_error() is required to be implemented on all
architectures in addition to already implemented syscall_get_nr(),
syscall_get_arguments(), syscall_get_return_value(), and
syscall_get_arch() functions in order to extend the generic
ptrace API with PTRACE_GET_SYSCALL_INFO request.

Acked-by: Helge Deller <del...@gmx.de> # parisc
Cc: James E.J. Bottomley <j...@parisc-linux.org>
Cc: Elvira Khabirova <lineprin...@altlinux.org>
Cc: Eugene Syromyatnikov <e...@redhat.com>
Cc: Oleg Nesterov <o...@redhat.com>
Cc: Andy Lutomirski <l...@kernel.org>
Cc: linux-par...@vger.kernel.org
Signed-off-by: Dmitry V. Levin <l...@altlinux.org>
---

Notes:
    v10: unchanged
    v9: unchanged
    v8: added Acked-by
    v7: unchanged
    v6: unchanged
    v5: initial revision

 arch/parisc/include/asm/syscall.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/parisc/include/asm/syscall.h 
b/arch/parisc/include/asm/syscall.h
index 80757e43cf2c..00b127a5e09b 100644
--- a/arch/parisc/include/asm/syscall.h
+++ b/arch/parisc/include/asm/syscall.h
@@ -29,6 +29,13 @@ static inline void syscall_get_arguments(struct task_struct 
*tsk,
        args[0] = regs->gr[26];
 }
 
+static inline long syscall_get_error(struct task_struct *task,
+                                    struct pt_regs *regs)
+{
+       unsigned long error = regs->gr[28];
+       return IS_ERR_VALUE(error) ? error : 0;
+}
+
 static inline long syscall_get_return_value(struct task_struct *task,
                                                struct pt_regs *regs)
 {
-- 
ldv

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