- if (st->devnm[0])
- fd = open("/sys/block", O_RDONLY|O_DIRECTORY);
- if (fd >= 0) {
- /* Don't open the device unless it is present and
- * active in sysfs.
- */
- char buf[10];
- close(fd);
- fd = sysfs_open(st->devnm, NULL, "array_state");
- if (fd < 0 ||
- read(fd, buf, 10) < 5 ||
- strncmp(buf,"clear",5) == 0 ||
- strncmp(buf,"inact",5) == 0) {
- if (fd >= 0)
- close(fd);
- fd = sysfs_open(st->devnm, NULL, "level");
- if (fd < 0 || read(fd, buf, 10) != 0) {
- if (fd >= 0)
- close(fd);
- if (!st->err)
- alert("DeviceDisappeared", dev, NULL, ainfo);
- st->err++;
- return 0;
- }
- }
- close(fd);
- }