validation/sm_netdevice.c

   1
   2 void kfree(void *);
   3
   4 struct net_device {
   5         char *name;
   6 };
   7
   8 void func(void)
   9 {
  10         struct net_device dev;
  11         struct net_device *dev2 = &dev;
  12         struct net_device **dev3 = &dev2;
  13         struct net_device *deva[10];
  14         struct net_device **devb[10];
  15         struct net_device ***devc = devb;
  16
  17         kfree(dev2);
  18         kfree(dev3);
  19         kfree(deva[0]);
  20         kfree(devb[0]);
  21         kfree(devc[0]);
  22 }
  23 /*
  24  * check-name: free_netdev() vs kfree()
  25  * check-command: smatch -p=kernel sm_netdevice.c
  26  *
  27  * check-output-start
  28 sm_netdevice.c:17 func() error: use free_netdev() here instead of kfree(dev2)
  29 sm_netdevice.c:19 func() error: use free_netdev() here instead of kfree(deva[0])
  30  * check-output-end
  31  */