powerpc/85xx: Wrong variable returned on error

The wrong variable was returned in the case of an error.

Signed-off-by: Roel Kluin <[e-mail]>
Cc: Kumar Gala <[e-mail]>
Cc: Benjamin Herrenschmidt <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
Signed-off-by: Benjamin Herrenschmidt <[e-mail]>

arch/powerpc/platforms/85xx/mpc85xx_mds.c

···
 	scr = phy_read(phydev, MV88E1111_SCR);
 
 	if (scr < 0)
-		return err;
+		return scr;
 
 	err = phy_write(phydev, MV88E1111_SCR, scr | 0x0008);