From: David S. Miller <davem@davemloft.net>
Date: Thu, 23 Oct 2008 05:09:59 +0000 (-0700)
Subject: math-emu: Fix thinko in _FP_DIV
X-Git-Tag: v2.6.28-rc1~4^2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=60b8267338aafde5315fc65ff385f3d4d75eccfe;p=platform%2Fkernel%2Flinux-stable.git

math-emu: Fix thinko in _FP_DIV

In commit 48d6c64311ddb6417b901639530ccbc47bdc7635 ("math-emu: Add
support for reporting exact invalid exception") code was added to
set the new FP_EX_INVALID_{IDI,ZDZ} exception flag bits.

However there is a missing break statement for the
_FP_CLS_COMBINE(FP_CLS_INF,FP_CLS_INF) switch case, the
code just falls into _FP_CLS_COMBINE(FP_CLS_ZERO,FP_CLS_ZERO)
which then proceeds to overwrite all of the settings.

Fix by adding the missing break.

Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/include/math-emu/op-common.h b/include/math-emu/op-common.h
index bc50aa0d6d73..f456534dcaf9 100644
--- a/include/math-emu/op-common.h
+++ b/include/math-emu/op-common.h
@@ -503,6 +503,8 @@ do {							\
     R##_c = FP_CLS_NAN;					\
     _FP_FRAC_SET_##wc(R, _FP_NANFRAC_##fs);		\
     FP_SET_EXCEPTION(FP_EX_INVALID | FP_EX_INVALID_IDI);\
+    break;						\
+							\
   case _FP_CLS_COMBINE(FP_CLS_ZERO,FP_CLS_ZERO):	\
     R##_s = _FP_NANSIGN_##fs;				\
     R##_c = FP_CLS_NAN;					\