Fix sanity check in UnwStartThumb() using the wrong register

cppcheck reported:
[lib/unwarminder/unwarm_thumb.c:399] -> [lib/unwarminder/unwarm_thumb.c:399]: (style) Same expression on both sides of '&&'.

Patch will also be sent to the upstream project.

Change-Id: I57033f290135f4dc09ac7e9b07c31461bc5b471a
Reviewed-on: http://gerrit.rockbox.org/157
Reviewed-by: Thomas Jarosch <tomj@simonv.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/unwarminder/unwarm_thumb.c b/lib/unwarminder/unwarm_thumb.c
index 09b3c9e54b..027d951f33 100644
--- a/lib/unwarminder/unwarm_thumb.c
+++ b/lib/unwarminder/unwarm_thumb.c
@@ -396,7 +396,7 @@ UnwResult UnwStartThumb(UnwState * const state)
                 case 12: /* ORR */
                 case 13: /* MUL */
                 case 14: /* BIC */
-                    if(M_IsOriginValid(state->regData[rs].o) && M_IsOriginValid(state->regData[rs].o))
+                    if(M_IsOriginValid(state->regData[rd].o) && M_IsOriginValid(state->regData[rs].o))
                     {
                         state->regData[rd].o = state->regData[rs].o;
                         state->regData[rd].o |= REG_VAL_ARITHMETIC;