drivers: power: report battery voltage in AOSP compatible format

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / net / compat.c

diff --git a/net/compat.c b/net/compat.c
index 275af79c131bf62cbfee3c63dd2143983497c241..d12529050b291e9951cc03881d46b723f98363d0 100644 (file)
--- a/net/compat.c
+++ b/net/compat.c
@@ -71,6 +71,13 @@ int get_compat_msghdr(struct msghdr *kmsg, struct compat_msghdr __user *umsg)
            __get_user(kmsg->msg_controllen, &umsg->msg_controllen) ||
            __get_user(kmsg->msg_flags, &umsg->msg_flags))
                return -EFAULT;
+
+       if (!tmp1)
+               kmsg->msg_namelen = 0;
+
+       if (kmsg->msg_namelen < 0)
+               return -EINVAL;
+
        if (kmsg->msg_namelen > sizeof(struct sockaddr_storage))
                kmsg->msg_namelen = sizeof(struct sockaddr_storage);
        kmsg->msg_name = compat_ptr(tmp1);