fs/proc/util.c

   1 #include <linux/dcache.h>
   2 #include "internal.h"
   3
   4 unsigned name_to_int(const struct qstr *qstr)
   5 {
   6         const char *name = qstr->name;
   7         int len = qstr->len;
   8         unsigned n = 0;
   9
  10         if (len > 1 && *name == '0')
  11                 goto out;
  12         do {
  13                 unsigned c = *name++ - '0';
  14                 if (c > 9)
  15                         goto out;
  16                 if (n >= (~0U-9)/10)
  17                         goto out;
  18                 n *= 10;
  19                 n += c;
  20         } while (--len > 0);
  21         return n;
  22 out:
  23         return ~0U;
  24 }