linux-kernel - [PATCH 3/4] staging: rtl8712: check for return value of _r8712_init_xmit

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Message-Id: <9314f33cc91f69d7d5c79912fe55136faca7927f.1666645510.git.namcaov@gmail.com>
Date:   Mon, 24 Oct 2022 23:24:08 +0200
From:   Nam Cao <namcaov@...il.com>
To:     Larry Finger <Larry.Finger@...inger.net>,
        Florian Schilhabel <florian.c.schilhabel@...glemail.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     namcaov@...il.com, linux-staging@...ts.linux.dev,
        linux-kernel@...r.kernel.org
Subject: [PATCH 3/4] staging: rtl8712: check for return value of _r8712_init_xmit_priv()

The return value of _r8712_init_xmit_priv() is never checked and the driver
always continue execution as if all is well. This will cause problems
if, for example, buffers cannot be allocated and the driver continue and
use those buffers.

Check for return value of _r8712_init_xmit_priv() and return error (if any)
during probing.

Signed-off-by: Nam Cao <namcaov@...il.com>
---
 drivers/staging/rtl8712/os_intfs.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/rtl8712/os_intfs.c b/drivers/staging/rtl8712/os_intfs.c
index 47d7d998fa86..ade57dd89eee 100644
--- a/drivers/staging/rtl8712/os_intfs.c
+++ b/drivers/staging/rtl8712/os_intfs.c
@@ -308,7 +308,9 @@ int r8712_init_drv_sw(struct _adapter *padapter)
 	ret = r8712_init_mlme_priv(padapter);
 	if (ret)
 		return ret;
-	_r8712_init_xmit_priv(&padapter->xmitpriv, padapter);
+	ret = _r8712_init_xmit_priv(&padapter->xmitpriv, padapter);
+	if (ret)
+		return ret;
 	ret = _r8712_init_recv_priv(&padapter->recvpriv, padapter);
 		return ret;
 	memset((unsigned char *)&padapter->securitypriv, 0,
-- 
2.25.1