return ERR_PTR(res);
}
+static ssize_t part_partition_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct hd_struct *p = dev_to_part(dev);
+
+ return sprintf(buf, "%d\n", p->partno);
+}
+
static ssize_t part_start_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
}
#endif
+static DEVICE_ATTR(partition, S_IRUGO, part_partition_show, NULL);
static DEVICE_ATTR(start, S_IRUGO, part_start_show, NULL);
static DEVICE_ATTR(size, S_IRUGO, part_size_show, NULL);
static DEVICE_ATTR(stat, S_IRUGO, part_stat_show, NULL);
#endif
static struct attribute *part_attrs[] = {
+ &dev_attr_partition.attr,
&dev_attr_start.attr,
&dev_attr_size.attr,
&dev_attr_stat.attr,
goto exit;
bdev->bd_invalidated = 1;
- err = blkdev_get(bdev, FMODE_READ, 0);
+ err = blkdev_get(bdev, FMODE_READ);
if (err < 0)
goto exit;
- blkdev_put(bdev);
+ blkdev_put(bdev, FMODE_READ);
exit:
/* announce disk after possible partitions are created */
sector_t from = state->parts[p].from;
if (!size)
continue;
+ if (from >= get_capacity(disk)) {
+ printk(KERN_WARNING
+ "%s: p%d ignored, start %llu is behind the end of the disk\n",
+ disk->disk_name, p, (unsigned long long) from);
+ continue;
+ }
if (from + size > get_capacity(disk)) {
+ /*
+ * we can not ignore partitions of broken tables
+ * created by for example camera firmware, but we
+ * limit them to the end of the disk to avoid
+ * creating invalid block devices
+ */
printk(KERN_WARNING
- "%s: p%d exceeds device capacity\n",
- disk->disk_name, p);
+ "%s: p%d size %llu limited to end of disk\n",
+ disk->disk_name, p, (unsigned long long) size);
+ size = get_capacity(disk) - from;
}
res = add_partition(disk, p, from, size, state->parts[p].flags);
if (res) {