staging: r8188eu: correct error logic of _rtw_init_recv_priv()

Convert the function _rtw_init_recv_priv() away from returning _FAIL
and _SUCCESS, which uses inverted error logic. Return 0 for success
and negative values for failure instead.
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Tested-by: Philipp Hortmann <philipp.g.hortmann@gmail.com> # Edimax N150
Link: https://lore.kernel.org/r/20230205080559.8319-3-straube.linux@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/r8188eu/core/rtw_recv.c

@@ -99,10 +99,8 @@ static int rtl8188eu_init_recv_priv(struct adapter *padapter)
 int _rtw_init_recv_priv(struct recv_priv *precvpriv, struct adapter *padapter)
 {
 	int i;
-
 	struct recv_frame *precvframe;
-
-	int	res = _SUCCESS;
+	int err;
 
 	spin_lock_init(&precvpriv->lock);
 
@@ -115,11 +113,8 @@ int _rtw_init_recv_priv(struct recv_priv *precvpriv, struct adapter *padapter)
 	precvpriv->free_recvframe_cnt = NR_RECVFRAME;
 
 	precvpriv->pallocated_frame_buf = vzalloc(NR_RECVFRAME * sizeof(struct recv_frame) + RXFRAME_ALIGN_SZ);
-
-	if (!precvpriv->pallocated_frame_buf) {
-		res = _FAIL;
-		goto exit;
-	}
+	if (!precvpriv->pallocated_frame_buf)
+		return -ENOMEM;
 
 	precvpriv->precv_frame_buf = (u8 *)ALIGN((size_t)(precvpriv->pallocated_frame_buf), RXFRAME_ALIGN_SZ);
 
@@ -139,16 +134,14 @@ int _rtw_init_recv_priv(struct recv_priv *precvpriv, struct adapter *padapter)
 	}
 	precvpriv->rx_pending_cnt = 1;
 
-	if (rtl8188eu_init_recv_priv(padapter))
-		res = _FAIL;
+	err = rtl8188eu_init_recv_priv(padapter);
 
 	timer_setup(&precvpriv->signal_stat_timer, rtw_signal_stat_timer_hdl, 0);
 	precvpriv->signal_stat_sampling_interval = 1000; /* ms */
 
 	rtw_set_signal_stat_timer(precvpriv);
-exit:
 
-	return res;
+	return err;
 }
 
 static void rtl8188eu_free_recv_priv(struct adapter *padapter)

drivers/staging/r8188eu/os_dep/os_intfs.c

@@ -482,7 +482,7 @@ u8 rtw_init_drv_sw(struct adapter *padapter)
 		goto free_mlme_ext;
 	}
 
-	if (_rtw_init_recv_priv(&padapter->recvpriv, padapter) == _FAIL) {
+	if (_rtw_init_recv_priv(&padapter->recvpriv, padapter)) {
 		dev_err(dvobj_to_dev(padapter->dvobj), "_rtw_init_recv_priv failed\n");
 		goto free_xmit_priv;
 	}