#include <linux/acpi.h>
#include <linux/module.h>
+#include <linux/ctype.h>
static const struct acpi_device_id acpi_pnp_device_ids[] = {
/* soc_button_array */
{""},
};
-static bool is_hex_digit(char c)
-{
- return (c >= 0 && c <= '9') || (c >= 'A' && c <= 'F');
-}
-
static bool matching_id(char *idstr, char *list_id)
{
int i;
for (i = 3; i < 7; i++) {
char c = toupper(idstr[i]);
- if (!is_hex_digit(c)
+ if (!isxdigit(c)
|| (list_id[i] != 'X' && c != toupper(list_id[i])))
return false;
}