validation/sm_loops4.c

   1 #include "check_debug.h"
   2
   3 char *some_func(void);
   4
   5 int x,y;
   6 int i;
   7 void func(void)
   8 {
   9         char *p;
  10         char *p2;
  11
  12         if (x > 0)
  13                 p = some_func();
  14         for (i = 0; i < x; i++)
  15                 *p = 'x';
  16         *p = 'x';
  17         if (y > 0)
  18                 p2 = some_func();
  19         i = 0;
  20         if (i < y)
  21                 *p2 = 'x';
  22 }
  23 /*
  24  * check-name: smatch loops #4
  25  * check-command: smatch -I.. sm_loops4.c
  26  *
  27  * check-output-start
  28 sm_loops4.c +16 func(9) error: potentially derefencing uninitialized 'p'.
  29  * check-output-end
  30  */