diff mbox series

[net-next,1/5] l2tp: fix set but not used variable

Message ID 20190417205159.30938-2-jakub.kicinski@netronome.com
State Accepted
Delegated to: David Miller
Headers show
Series net: some build fixes and other improvements | expand

Commit Message

Jakub Kicinski April 17, 2019, 8:51 p.m. UTC 
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>
---
CC: James Chapman <jchapman@katalix.com>

 net/l2tp/l2tp_ppp.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)
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Patch

diff --git a/net/l2tp/l2tp_ppp.c b/net/l2tp/l2tp_ppp.c
index 04d9946dcdba..f36cae785e82 100644
--- a/net/l2tp/l2tp_ppp.c
+++ b/net/l2tp/l2tp_ppp.c
@@ -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;