net: fix compat_sys_recvmmsg parameter type

compat_sys_recvmmsg has a compat_timespec parameter and not a
timespec parameter. This way we also get rid of an odd cast.

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 6 insertions, 8 deletions

diff --git a/include/net/compat.h b/include/net/compat.h
index 3c7d4e38fa1d..28d5428ec6a2 100644
--- a/include/net/compat.h
+++ b/include/net/compat.h
@@ -46,7 +46,7 @@ extern asmlinkage long compat_sys_sendmsg(int,struct compat_msghdr __user *,unsi
 extern asmlinkage long compat_sys_recvmsg(int,struct compat_msghdr __user *,unsigned);
 extern asmlinkage long compat_sys_recvmmsg(int, struct compat_mmsghdr __user *,
                                            unsigned, unsigned,
-                                           struct timespec __user *);
+                                           struct compat_timespec __user *);
 extern asmlinkage long compat_sys_getsockopt(int, int, int, char __user *, int __user *);
 extern int put_cmsg_compat(struct msghdr*, int, int, int, void *);
 
diff --git a/net/compat.c b/net/compat.c
index e1a56ade803b..c4d9131a5872 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -754,26 +754,24 @@ asmlinkage long compat_sys_recvfrom(int fd, void __user *buf, size_t len,
 
 asmlinkage long compat_sys_recvmmsg(int fd, struct compat_mmsghdr __user *mmsg,
                                     unsigned vlen, unsigned int flags,
-                                    struct timespec __user *timeout)
+                                    struct compat_timespec __user *timeout)
 {
         int datagrams;
         struct timespec ktspec;
-        struct compat_timespec __user *utspec;
 
         if (timeout == NULL)
                 return __sys_recvmmsg(fd, (struct mmsghdr __user *)mmsg, vlen,
                                       flags | MSG_CMSG_COMPAT, NULL);
 
-        utspec = (struct compat_timespec __user *)timeout;
-        if (get_user(ktspec.tv_sec, &utspec->tv_sec) ||
-            get_user(ktspec.tv_nsec, &utspec->tv_nsec))
+        if (get_user(ktspec.tv_sec, &timeout->tv_sec) ||
+            get_user(ktspec.tv_nsec, &timeout->tv_nsec))
                 return -EFAULT;
 
         datagrams = __sys_recvmmsg(fd, (struct mmsghdr __user *)mmsg, vlen,
                                    flags | MSG_CMSG_COMPAT, &ktspec);
         if (datagrams > 0 &&
-            (put_user(ktspec.tv_sec, &utspec->tv_sec) ||
-             put_user(ktspec.tv_nsec, &utspec->tv_nsec)))
+            (put_user(ktspec.tv_sec, &timeout->tv_sec) ||
+             put_user(ktspec.tv_nsec, &timeout->tv_nsec)))
                 datagrams = -EFAULT;
 
         return datagrams;