MIPS: math-emu: Get rid of typedefs.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/math-emu/sp_div.c b/arch/mips/math-emu/sp_div.c
index d7747928c..1f62865 100644
--- a/arch/mips/math-emu/sp_div.c
+++ b/arch/mips/math-emu/sp_div.c
@@ -26,7 +26,7 @@
 
 #include "ieee754sp.h"
 
-ieee754sp ieee754sp_div(ieee754sp x, ieee754sp y)
+union ieee754sp ieee754sp_div(union ieee754sp x, union ieee754sp y)
 {
 	COMPXSP;
 	COMPYSP;