linux-kernel - [PATCH 1/3] staging: rtl8712: change the type of _r8712_init_recv

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Date:   Fri,  1 Apr 2022 01:06:35 +0800
From:   xkernel.wang@...mail.com
To:     gregkh@...uxfoundation.org
Cc:     Larry.Finger@...inger.net, florian.c.schilhabel@...glemail.com,
        linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Xiaoke Wang <xkernel.wang@...mail.com>
Subject: [PATCH 1/3] staging: rtl8712: change the type of _r8712_init_recv_priv()

From: Xiaoke Wang <xkernel.wang@...mail.com>

There is a memory allocation in _r8712_init_recv_priv(). Since the
original type of this function is void, now it is changed to int to
make the error of allocation failures propagate to its caller easily.

Signed-off-by: Xiaoke Wang <xkernel.wang@...mail.com>
---
 drivers/staging/rtl8712/recv_osdep.h   | 2 +-
 drivers/staging/rtl8712/rtl871x_recv.c | 5 +++--
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/rtl8712/recv_osdep.h b/drivers/staging/rtl8712/recv_osdep.h
index d8c1fa7..f5b97c5 100644
--- a/drivers/staging/rtl8712/recv_osdep.h
+++ b/drivers/staging/rtl8712/recv_osdep.h
@@ -18,7 +18,7 @@
 #include "drv_types.h"
 #include <linux/skbuff.h>
 
-void _r8712_init_recv_priv(struct recv_priv *precvpriv,
+int _r8712_init_recv_priv(struct recv_priv *precvpriv,
 			   struct _adapter *padapter);
 void _r8712_free_recv_priv(struct recv_priv *precvpriv);
 void r8712_recv_entry(union recv_frame *precv_frame);
diff --git a/drivers/staging/rtl8712/rtl871x_recv.c b/drivers/staging/rtl8712/rtl871x_recv.c
index c23f6b3..dd8cb07 100644
--- a/drivers/staging/rtl8712/rtl871x_recv.c
+++ b/drivers/staging/rtl8712/rtl871x_recv.c
@@ -44,7 +44,7 @@ void _r8712_init_sta_recv_priv(struct sta_recv_priv *psta_recvpriv)
 	_init_queue(&psta_recvpriv->defrag_q);
 }
 
-void _r8712_init_recv_priv(struct recv_priv *precvpriv,
+int _r8712_init_recv_priv(struct recv_priv *precvpriv,
 			   struct _adapter *padapter)
 {
 	sint i;
@@ -60,7 +60,7 @@ void _r8712_init_recv_priv(struct recv_priv *precvpriv,
 				sizeof(union recv_frame) + RXFRAME_ALIGN_SZ,
 				GFP_ATOMIC);
 	if (!precvpriv->pallocated_frame_buf)
-		return;
+		return -ENOMEM;
 	kmemleak_not_leak(precvpriv->pallocated_frame_buf);
 	precvpriv->precv_frame_buf = precvpriv->pallocated_frame_buf +
 				    RXFRAME_ALIGN_SZ -
@@ -77,6 +77,7 @@ void _r8712_init_recv_priv(struct recv_priv *precvpriv,
 	}
 	precvpriv->rx_pending_cnt = 1;
 	r8712_init_recv_priv(precvpriv, padapter);
+	return 0;
 }
 
 void _r8712_free_recv_priv(struct recv_priv *precvpriv)
--