linux-kernel - [PATCH v2] staging: rtl8188eu: Skip unnecessary field checks

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Message-Id: <20180927211911.26484-1-qader.aymen@gmail.com>
Date:   Thu, 27 Sep 2018 22:19:11 +0100
From:   Aymen Qader <qader.aymen@...il.com>
To:     Larry Finger <Larry.Finger@...inger.net>
Cc:     Aymen Qader <qader.aymen@...il.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2] staging: rtl8188eu: Skip unnecessary field checks

Skip unnecessary request field checks when the information element
pointer is null.

Signed-off-by: Aymen Qader <qader.aymen@...il.com>
---
v2: combine pointer check and length check & change commit message to be
more appropriate

 drivers/staging/rtl8188eu/core/rtw_mlme_ext.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c b/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c
index 834053a0ae9d..4d55bbdf8fb7 100644
--- a/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c
+++ b/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c
@@ -2971,11 +2971,11 @@ static unsigned int OnAssocReq(struct adapter *padapter,
 	/*  checking SSID */
 	p = rtw_get_ie(pframe + WLAN_HDR_A3_LEN + ie_offset, _SSID_IE_, &ie_len,
 		pkt_len - WLAN_HDR_A3_LEN - ie_offset);
-	if (!p)
-		status = _STATS_FAILURE_;
 
-	if (ie_len == 0) { /*  broadcast ssid, however it is not allowed in assocreq */
+	if (!p || ie_len == 0) {
+		/*  broadcast ssid, however it is not allowed in assocreq */
 		status = _STATS_FAILURE_;
+		goto OnAssocReqFail;
 	} else {
 		/*  check if ssid match */
 		if (memcmp((void *)(p+2), cur->Ssid.Ssid, cur->Ssid.SsidLength))
-- 
2.17.1