linux-kernel - [PATCH -next v4 1/3] staging: rtl8192e: return error code from rtllib_softmac

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Date:   Thu, 2 Dec 2021 11:07:02 +0800
From:   Yang Yingliang <yangyingliang@...wei.com>
To:     <linux-kernel@...r.kernel.org>, <linux-staging@...ts.linux.dev>
CC:     <gregkh@...uxfoundation.org>, <paskripkin@...il.com>,
        <dan.carpenter@...cle.com>
Subject: [PATCH -next v4 1/3] staging: rtl8192e: return error code from rtllib_softmac_init()

If it fails to allocate 'dot11d_info', rtllib_softmac_init()
should return error code. And remove unneccessary error message.

Fixes: 94a799425eee ("From: wlanfae <wlanfae@...ltek.com>")
Signed-off-by: Yang Yingliang <yangyingliang@...wei.com>
---
 drivers/staging/rtl8192e/rtllib.h         | 2 +-
 drivers/staging/rtl8192e/rtllib_softmac.c | 6 ++++--
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/rtl8192e/rtllib.h b/drivers/staging/rtl8192e/rtllib.h
index c6f8b772335c..c985e4ebc545 100644
--- a/drivers/staging/rtl8192e/rtllib.h
+++ b/drivers/staging/rtl8192e/rtllib.h
@@ -1980,7 +1980,7 @@ void SendDisassociation(struct rtllib_device *ieee, bool deauth, u16 asRsn);
 void rtllib_softmac_xmit(struct rtllib_txb *txb, struct rtllib_device *ieee);
 
 void rtllib_start_ibss(struct rtllib_device *ieee);
-void rtllib_softmac_init(struct rtllib_device *ieee);
+int rtllib_softmac_init(struct rtllib_device *ieee);
 void rtllib_softmac_free(struct rtllib_device *ieee);
 void rtllib_disassociate(struct rtllib_device *ieee);
 void rtllib_stop_scan(struct rtllib_device *ieee);
diff --git a/drivers/staging/rtl8192e/rtllib_softmac.c b/drivers/staging/rtl8192e/rtllib_softmac.c
index aabbea48223d..4b6c2295a3cf 100644
--- a/drivers/staging/rtl8192e/rtllib_softmac.c
+++ b/drivers/staging/rtl8192e/rtllib_softmac.c
@@ -2952,7 +2952,7 @@ void rtllib_start_protocol(struct rtllib_device *ieee)
 	}
 }
 
-void rtllib_softmac_init(struct rtllib_device *ieee)
+int rtllib_softmac_init(struct rtllib_device *ieee)
 {
 	int i;
 
@@ -2963,7 +2963,8 @@ void rtllib_softmac_init(struct rtllib_device *ieee)
 		ieee->seq_ctrl[i] = 0;
 	ieee->dot11d_info = kzalloc(sizeof(struct rt_dot11d_info), GFP_ATOMIC);
 	if (!ieee->dot11d_info)
-		netdev_err(ieee->dev, "Can't alloc memory for DOT11D\n");
+		return -ENOMEM;
+
 	ieee->LinkDetectInfo.SlotIndex = 0;
 	ieee->LinkDetectInfo.SlotNum = 2;
 	ieee->LinkDetectInfo.NumRecvBcnInPeriod = 0;
@@ -3029,6 +3030,7 @@ void rtllib_softmac_init(struct rtllib_device *ieee)
 
 	tasklet_setup(&ieee->ps_task, rtllib_sta_ps);
 
+	return 0;
 }
 
 void rtllib_softmac_free(struct rtllib_device *ieee)
-- 
2.25.1