calculate-overlay/net-wireless/rtl8723de/files/rtl-20190515-kernel-4.19.patch

diff --git a/os_dep/linux/rtw_android.c b/os_dep/linux/rtw_android.c
index 4d0b5fa..f3310ac 100644
--- a/os_dep/linux/rtw_android.c
+++ b/os_dep/linux/rtw_android.c
@@ -632,7 +632,11 @@ int rtw_android_priv_cmd(struct net_device *net, struct ifreq *ifr, int cmd)
 	* post 5.0.0 ==> static inline int access_ok(const void *addr, unsigned long size)
 	* type int was a previously unused variable 
 	*/
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5, 0, 0))
 	if (!access_ok(priv_cmd.buf, priv_cmd.total_len)) {
+#else
+	if (!access_ok(VERIFY_READ, priv_cmd.buf, priv_cmd.total_len)) {
+#endif
 		RTW_INFO("%s: failed to access memory\n", __FUNCTION__);
 		ret = -EFAULT;
 		goto exit;