rk3188:pmu:rt5025:updata rt5025 drivers, modify some fg and charger bug

[firefly-linux-kernel-4.4.55.git] / net / socket.c

diff --git a/net/socket.c b/net/socket.c
index ed46dbbb8601d7fac96ae8cde48e91152536aa4d..1b0f0fccdbcd0c37cb9d5565c3d4bed527a8a522 100644 (file)
--- a/net/socket.c
+++ b/net/socket.c
@@ -791,9 +791,9 @@ static ssize_t sock_sendpage(struct file *file, struct page *page,
 
        sock = file->private_data;
 
-       flags = !(file->f_flags & O_NONBLOCK) ? 0 : MSG_DONTWAIT;
-       if (more)
-               flags |= MSG_MORE;
+       flags = (file->f_flags & O_NONBLOCK) ? MSG_DONTWAIT : 0;
+       /* more is a combination of MSG_MORE and MSG_SENDPAGE_NOTLAST */
+       flags |= more;
 
        return kernel_sendpage(sock, page, offset, size, flags);
 }
@@ -1965,8 +1965,9 @@ static int __sys_sendmsg(struct socket *sock, struct msghdr __user *msg,
         * used_address->name_len is initialized to UINT_MAX so that the first
         * destination address never matches.
         */
-       if (used_address && used_address->name_len == msg_sys->msg_namelen &&
-           !memcmp(&used_address->name, msg->msg_name,
+       if (used_address && msg_sys->msg_name &&
+           used_address->name_len == msg_sys->msg_namelen &&
+           !memcmp(&used_address->name, msg_sys->msg_name,
                    used_address->name_len)) {
                err = sock_sendmsg_nosec(sock, msg_sys, total_len);
                goto out_freectl;
@@ -1978,8 +1979,9 @@ static int __sys_sendmsg(struct socket *sock, struct msghdr __user *msg,
         */
        if (used_address && err >= 0) {
                used_address->name_len = msg_sys->msg_namelen;
-               memcpy(&used_address->name, msg->msg_name,
-                      used_address->name_len);
+               if (msg_sys->msg_name)
+                       memcpy(&used_address->name, msg_sys->msg_name,
+                              used_address->name_len);
        }
 
 out_freectl:
@@ -2643,6 +2645,7 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
        if (copy_from_user(&ifc32, uifc32, sizeof(struct compat_ifconf)))
                return -EFAULT;
 
+       memset(&ifc, 0, sizeof(ifc));
        if (ifc32.ifcbuf == 0) {
                ifc32.ifc_len = 0;
                ifc.ifc_len = 0;