static struct bsg_device *__bsg_get_device(int minor, struct request_queue *q)
{
struct bsg_device *bd;
- struct hlist_node *entry;
mutex_lock(&bsg_mutex);
- hlist_for_each_entry(bd, entry, bsg_dev_idx_hash(minor), dev_list) {
+ hlist_for_each_entry(bd, bsg_dev_idx_hash(minor), dev_list) {
if (bd->queue == q) {
atomic_inc(&bd->ref_count);
goto found;
{
struct bsg_class_device *bcd;
dev_t dev;
- int ret, minor;
+ int ret;
struct device *class_dev = NULL;
const char *devname;
mutex_lock(&bsg_mutex);
- ret = idr_pre_get(&bsg_minor_idr, GFP_KERNEL);
- if (!ret) {
- ret = -ENOMEM;
- goto unlock;
- }
-
- ret = idr_get_new(&bsg_minor_idr, bcd, &minor);
- if (ret < 0)
+ ret = idr_alloc(&bsg_minor_idr, bcd, 0, BSG_MAX_DEVS, GFP_KERNEL);
+ if (ret < 0) {
+ if (ret == -ENOSPC) {
+ printk(KERN_ERR "bsg: too many bsg devices\n");
+ ret = -EINVAL;
+ }
goto unlock;
-
- if (minor >= BSG_MAX_DEVS) {
- printk(KERN_ERR "bsg: too many bsg devices\n");
- ret = -EINVAL;
- goto remove_idr;
}
- bcd->minor = minor;
+ bcd->minor = ret;
bcd->queue = q;
bcd->parent = get_device(parent);
bcd->release = release;
device_unregister(class_dev);
put_dev:
put_device(parent);
-remove_idr:
- idr_remove(&bsg_minor_idr, minor);
+ idr_remove(&bsg_minor_idr, bcd->minor);
unlock:
mutex_unlock(&bsg_mutex);
return ret;