[PATCH] powerpc/sstep: Avoid used uninitialized error

[Michael Ellerman]

Older compilers think val may be used uninitialized:

  arch/powerpc/lib/sstep.c: In function 'emulate_loadstore':
  arch/powerpc/lib/sstep.c:2758:23: error: 'val' may be used uninitialized in 
this function

We know better, but initialise val to 0 to avoid breaking the build.

Signed-off-by: Michael Ellerman <m...@ellerman.id.au>
---
 arch/powerpc/lib/sstep.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/powerpc/lib/sstep.c b/arch/powerpc/lib/sstep.c
index 06dd61d8d48b..fb9f58b868e7 100644
--- a/arch/powerpc/lib/sstep.c
+++ b/arch/powerpc/lib/sstep.c
@@ -2727,6 +2727,7 @@ int emulate_loadstore(struct pt_regs *regs, struct 
instruction_op *op)
                if (!address_ok(regs, ea, size))
                        return -EFAULT;
                err = 0;
+               val = 0;
                switch (size) {
 #ifdef __powerpc64__
                case 1:
-- 
2.7.4