diff options
| -rw-r--r-- | drivers/fsi/fsi-core.c | 24 |
1 files changed, 17 insertions, 7 deletions
diff --git a/drivers/fsi/fsi-core.c b/drivers/fsi/fsi-core.c index 545581d83a33..90872e2e78d1 100644 --- a/drivers/fsi/fsi-core.c +++ b/drivers/fsi/fsi-core.c @@ -1309,11 +1309,21 @@ int fsi_master_register(struct fsi_master *master) struct device_node *np; mutex_init(&master->scan_lock); - master->idx = ida_alloc(&master_ida, GFP_KERNEL); + + /* Alloc the requested index if it's non-zero */ + if (master->idx) { + master->idx = ida_alloc_range(&master_ida, master->idx, + master->idx, GFP_KERNEL); + } else { + master->idx = ida_alloc(&master_ida, GFP_KERNEL); + } + if (master->idx < 0) return master->idx; - dev_set_name(&master->dev, "fsi%d", master->idx); + if (!dev_name(&master->dev)) + dev_set_name(&master->dev, "fsi%d", master->idx); + master->dev.class = &fsi_master_class; rc = device_register(&master->dev); @@ -1335,17 +1345,17 @@ EXPORT_SYMBOL_GPL(fsi_master_register); void fsi_master_unregister(struct fsi_master *master) { - trace_fsi_master_unregister(master); + int idx = master->idx; - if (master->idx >= 0) { - ida_free(&master_ida, master->idx); - master->idx = -1; - } + trace_fsi_master_unregister(master); mutex_lock(&master->scan_lock); fsi_master_unscan(master); + master->n_links = 0; mutex_unlock(&master->scan_lock); + device_unregister(&master->dev); + ida_free(&master_ida, idx); } EXPORT_SYMBOL_GPL(fsi_master_unregister); |