From: liuguoqiang <liuguoqiang@uniontech.com>
Date: Mon, 15 Nov 2021 09:21:39 +0000 (+0800)
Subject: cfg80211: delete redundant free code
X-Git-Tag: v6.1-rc5~2306^2~150^2~24
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=3536672bbdc2e7093333be85c945a63aef4c6bb8;p=platform%2Fkernel%2Flinux-starfive.git

cfg80211: delete redundant free code

When kzalloc failed and rdev->sacn_req or rdev->scan_msg is null, pass a
null pointer to kfree is redundant, delete it and return directly.

Signed-off-by: liuguoqiang <liuguoqiang@uniontech.com>
Link: https://lore.kernel.org/r/20211115092139.24407-1-liuguoqiang@uniontech.com
[remove now unused creq = NULL assigment]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---

diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index 22e92be..a960940 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -2687,7 +2687,7 @@ int cfg80211_wext_siwscan(struct net_device *dev,
 	struct cfg80211_registered_device *rdev;
 	struct wiphy *wiphy;
 	struct iw_scan_req *wreq = NULL;
-	struct cfg80211_scan_request *creq = NULL;
+	struct cfg80211_scan_request *creq;
 	int i, err, n_channels = 0;
 	enum nl80211_band band;
 
@@ -2702,10 +2702,8 @@ int cfg80211_wext_siwscan(struct net_device *dev,
 	if (IS_ERR(rdev))
 		return PTR_ERR(rdev);
 
-	if (rdev->scan_req || rdev->scan_msg) {
-		err = -EBUSY;
-		goto out;
-	}
+	if (rdev->scan_req || rdev->scan_msg)
+		return -EBUSY;
 
 	wiphy = &rdev->wiphy;
 
@@ -2718,10 +2716,8 @@ int cfg80211_wext_siwscan(struct net_device *dev,
 	creq = kzalloc(sizeof(*creq) + sizeof(struct cfg80211_ssid) +
 		       n_channels * sizeof(void *),
 		       GFP_ATOMIC);
-	if (!creq) {
-		err = -ENOMEM;
-		goto out;
-	}
+	if (!creq)
+		return -ENOMEM;
 
 	creq->wiphy = wiphy;
 	creq->wdev = dev->ieee80211_ptr;