powerpc/math-emu: Remove redundant 'ret'

FP_DECL_EX is already used, so ret is redundant.
And FP_SET_EXCEPTION will add status into return value.

Signed-off-by: Liu Yu <yu.liu@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/arch/powerpc/math-emu/fmuls.c b/arch/powerpc/math-emu/fmuls.c
index 2d3ec5f..f5ad5c9 100644
--- a/arch/powerpc/math-emu/fmuls.c
+++ b/arch/powerpc/math-emu/fmuls.c
@@ -14,7 +14,6 @@
 	FP_DECL_D(B);
 	FP_DECL_D(R);
 	FP_DECL_EX;
-	int ret = 0;
 
 #ifdef DEBUG
 	printk("%s: %p %p %p\n", __func__, frD, frA, frB);
@@ -32,7 +31,7 @@
 
 	if ((A_c == FP_CLS_INF && B_c == FP_CLS_ZERO) ||
 	    (A_c == FP_CLS_ZERO && B_c == FP_CLS_INF))
-		ret |= EFLAG_VXIMZ;
+		FP_SET_EXCEPTION(EFLAG_VXIMZ);
 
 	FP_MUL_D(R, A, B);