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net: use compat helper functions in compat_sys_recvmmsg 

Use (get|put)_compat_timespec helper functions to simplify the code.

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>
hifive-unleashed-5.1
Heiko Carstens 2009-12-09 20:59:15 +00:00 committed by David S. Miller
parent 60c2ffd3d2
commit de039f02d8
1 changed files with 2 additions and 5 deletions
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7
net/compat.c
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@ -763,15 +763,12 @@ asmlinkage long compat_sys_recvmmsg(int fd, struct compat_mmsghdr __user *mmsg,
return __sys_recvmmsg(fd, (struct mmsghdr __user *)mmsg, vlen,
flags | MSG_CMSG_COMPAT, NULL);
if (get_user(ktspec.tv_sec, &timeout->tv_sec) ||
get_user(ktspec.tv_nsec, &timeout->tv_nsec))
if (get_compat_timespec(&ktspec, timeout))
return -EFAULT;
datagrams = __sys_recvmmsg(fd, (struct mmsghdr __user *)mmsg, vlen,
flags | MSG_CMSG_COMPAT, &ktspec);
if (datagrams > 0 &&
(put_user(ktspec.tv_sec, &timeout->tv_sec) ||
put_user(ktspec.tv_nsec, &timeout->tv_nsec)))
if (datagrams > 0 && put_compat_timespec(&ktspec, timeout))
datagrams = -EFAULT;
return datagrams;