From c3327bde514d5945f5de1e28bed3eaa0c4d622ec Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Fri, 28 Jul 2017 17:41:11 +0300
Subject: [PATCH] Bluetooth: btrtl: Fix a error code in rtl_load_config()
Git-commit: c3327bde514d5945f5de1e28bed3eaa0c4d622ec
Patch-mainline: v4.14-rc1
References: bsc#1051510

We accidentally return success if the kmemdup() fails.  It results in
a NULL dereference in the caller.

Fixes: 1110a2dbe698 ("Bluetooth: btrtl: Add RTL8822BE Bluetooth device")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/bluetooth/btrtl.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/bluetooth/btrtl.c
+++ b/drivers/bluetooth/btrtl.c
@@ -279,6 +279,8 @@ static int rtl_load_config(struct hci_de
 		return ret;
 	ret = fw->size;
 	*buff = kmemdup(fw->data, ret, GFP_KERNEL);
+	if (!*buff)
+		ret = -ENOMEM;
 
 	release_firmware(fw);