MIPS: Fix syscall tracing interface

Fix pointer computation for stack-based arguments.

Signed-off-by: Lars Persson <larper@axis.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/6620/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/arch/mips/include/asm/syscall.h b/arch/mips/include/asm/syscall.h
index a7e8a532f144..f35b131977e6 100644
--- a/arch/mips/include/asm/syscall.h
+++ b/arch/mips/include/asm/syscall.h
@@ -40,14 +40,14 @@ static inline unsigned long mips_get_syscall_arg(unsigned long *arg,
 
 #ifdef CONFIG_32BIT
         case 4: case 5: case 6: case 7:
-                return get_user(*arg, (int *)usp + 4 * n);
+                return get_user(*arg, (int *)usp + n);
 #endif
 
 #ifdef CONFIG_64BIT
         case 4: case 5: case 6: case 7:
 #ifdef CONFIG_MIPS32_O32
                 if (test_thread_flag(TIF_32BIT_REGS))
-                        return get_user(*arg, (int *)usp + 4 * n);
+                        return get_user(*arg, (int *)usp + n);
                 else
 #endif
                         *arg = regs->regs[4 + n];