MIPS: math-emu: Get rid of typedefs.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/math-emu/sp_fdp.c b/arch/mips/math-emu/sp_fdp.c
index e1515aa..cbefb88 100644
--- a/arch/mips/math-emu/sp_fdp.c
+++ b/arch/mips/math-emu/sp_fdp.c
@@ -26,10 +26,10 @@
 
 #include "ieee754sp.h"
 
-ieee754sp ieee754sp_fdp(ieee754dp x)
+union ieee754sp ieee754sp_fdp(union ieee754dp x)
 {
 	COMPXDP;
-	ieee754sp nan;
+	union ieee754sp nan;
 
 	EXPLODEXDP;