[linux-block.git] / fs / proc / util.c

#include <linux/dcache.h>
#include "internal.h"

unsigned name_to_int(const struct qstr *qstr)
{
	const char *name = qstr->name;
	int len = qstr->len;
	unsigned n = 0;

	if (len > 1 && *name == '0')
		goto out;
	do {
		unsigned c = *name++ - '0';
		if (c > 9)
			goto out;
		if (n >= (~0U-9)/10)
			goto out;
		n *= 10;
		n += c;
	} while (--len > 0);
	return n;
out:
	return ~0U;
}
Commit	Line	Data
3ee2a199	1	#include <linux/dcache.h>
81966d83	2	#include "internal.h"
3ee2a199 AD	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;
0746a0bc	12	do {
3ee2a199 AD	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;
0746a0bc	20	} while (--len > 0);
3ee2a199 AD	21	return n;
	22	out:
	23	return ~0U;
	24	}