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l2tp: fix set but not used variable

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GCC complains:

net/l2tp/l2tp_ppp.c: In function ‘pppol2tp_ioctl’:
net/l2tp/l2tp_ppp.c:1073:6: warning: variable ‘val’ set but not used [-Wunused-but-set-variable]
  int val;
      ^~~

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jakub Kicinski 2019-04-17 13:51:55 -07:00 committed by David S. Miller
parent 0bc1998544
commit 503c018801
1 changed files with 1 additions and 2 deletions
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3
net/l2tp/l2tp_ppp.c
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@ -1070,7 +1070,6 @@ static int pppol2tp_ioctl(struct socket *sock, unsigned int cmd,
{
struct pppol2tp_ioc_stats stats;
struct l2tp_session *session;
int val;
switch (cmd) {
case PPPIOCGMRU:
@ -1097,7 +1096,7 @@ static int pppol2tp_ioctl(struct socket *sock, unsigned int cmd,
if (!session->session_id && !session->peer_session_id)
return -ENOSYS;
if (get_user(val, (int __user *)arg))
if (!access_ok((int __user *)arg, sizeof(int)))
return -EFAULT;
break;