staging: rtl8712: init_mp_priv(): Change return values

Change return values of init_mp_priv from _SUCCESS/_FAIL to 0/-ENOMEM
respectively.
Remove label that returns the required value and return the values
directly as they are set.
Consequently remove now-unnecessary return variable.
Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com>
Link: https://lore.kernel.org/r/20190722092341.21030-5-nishkadg.linux@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8712/rtl871x_mp.c

@@ -35,7 +35,7 @@ static void _init_mp_priv_(struct mp_priv *pmp_priv)
 
 static int init_mp_priv(struct mp_priv *pmp_priv)
 {
-	int i, res;
+	int i;
 	struct mp_xmit_frame *pmp_xmitframe;
 
 	_init_mp_priv_(pmp_priv);
@@ -45,8 +45,7 @@ static int init_mp_priv(struct mp_priv *pmp_priv)
 				sizeof(struct mp_xmit_frame) + 4,
 				GFP_ATOMIC);
 	if (!pmp_priv->pallocated_mp_xmitframe_buf) {
-		res = _FAIL;
-		goto _exit_init_mp_priv;
+		return -ENOMEM;
 	}
 	pmp_priv->pmp_xmtframe_buf = pmp_priv->pallocated_mp_xmitframe_buf +
 			 4 -
@@ -62,9 +61,7 @@ static int init_mp_priv(struct mp_priv *pmp_priv)
 		pmp_xmitframe++;
 	}
 	pmp_priv->free_mp_xmitframe_cnt = NR_MP_XMITFRAME;
-	res = _SUCCESS;
-_exit_init_mp_priv:
-	return res;
+	return 0;
 }
 
 static int free_mp_priv(struct mp_priv *pmp_priv)