validation/sm_dev_hold.c

   1 void dev_hold(int *x);
   2
   3 void dev_put(int *x){}
   4
   5 extern int y,z;
   6
   7 int func (void)
   8 {
   9         int *x;
  10
  11         dev_hold(x);
  12         if (y) {
  13                 dev_put(x);
  14                 return -1;
  15         }
  16         if (z) {
  17                 return -1;
  18         }
  19         return 0;
  20 }
  21 /*
  22  * check-name: dev_hold() check
  23  * check-command: smatch --project=kernel sm_dev_hold.c
  24  *
  25  * check-output-start
  26 sm_dev_hold.c:17 func() warn: 'x' held on error path.
  27  * check-output-end
  28  */