From: Himani Gupta <himani.g2@samsung.com>
Date: Mon, 11 Jun 2018 10:20:19 +0000 (+0530)
Subject: [9610][7885][7872][7570] wlbt: Kernel Panic in slsi_lls_get_stats API.
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=05b44496528efb52cf5ce573625c2a77fb1c82ed;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

[9610][7885][7872][7570] wlbt: Kernel Panic in slsi_lls_get_stats API.

Unable to handle kernel null pointer dereference(sdev) in
slsi_lls_get_stats API.

Change-Id: I5bd7ddb7c1c131adf510b56eccb2ad0046970802
SCSC-Bug-Id:SSB-40679
Signed-off-by: Himani Gupta <himani.g2@samsung.com>
---

diff --git a/drivers/net/wireless/scsc/nl80211_vendor.c b/drivers/net/wireless/scsc/nl80211_vendor.c
index 5be61acccd9a..2106dbe2280a 100755
--- a/drivers/net/wireless/scsc/nl80211_vendor.c
+++ b/drivers/net/wireless/scsc/nl80211_vendor.c
@@ -2831,6 +2831,11 @@ static int slsi_lls_get_stats(struct wiphy *wiphy, struct wireless_dev *wdev, co
 		return -EOPNOTSUPP;
 	}
 
+	if(!sdev) {
+		SLSI_ERR(sdev, "sdev is Null\n");
+		return -EINVAL;
+	}
+
 	SLSI_MUTEX_LOCK(sdev->device_config_mutex);
 	/* In case of lower layer failure do not read LLS MIBs */
 	if (sdev->mlme_blocked)