fs/proc/util.c

   1 #include <linux/dcache.h>
   2
   3 unsigned name_to_int(const struct qstr *qstr)
   4 {
   5         const char *name = qstr->name;
   6         int len = qstr->len;
   7         unsigned n = 0;
   8
   9         if (len > 1 && *name == '0')
  10                 goto out;
  11         do {
  12                 unsigned c = *name++ - '0';
  13                 if (c > 9)
  14                         goto out;
  15                 if (n >= (~0U-9)/10)
  16                         goto out;
  17                 n *= 10;
  18                 n += c;
  19         } while (--len > 0);
  20         return n;
  21 out:
  22         return ~0U;
  23 }