Signed-off-by: Lee Duncan <ldun...@suse.com>
---
drivers/scsi/st.c | 15 ++++-----------
1 file changed, 4 insertions(+), 11 deletions(-)
diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c
index b37b9b00c4b4..51e1ce721d9f 100644
--- a/drivers/scsi/st.c
+++ b/drivers/scsi/st.c
@@ -4265,11 +4265,8 @@ static int st_probe(struct device *dev)
tpnt->blksize_changed = 0;
mutex_init(&tpnt->lock);
- idr_preload(GFP_KERNEL);
- spin_lock(&st_index_lock);
- error = idr_alloc(&st_index_idr, tpnt, 0, ST_MAX_TAPES + 1, GFP_NOWAIT);
- spin_unlock(&st_index_lock);
- idr_preload_end();
+ error = idr_get_index_in_range(&st_index_idr, &st_index_lock, tpnt,
+ 0, ST_MAX_TAPES + 1);
if (error < 0) {
pr_warn("st: idr allocation failed: %d\n", error);
goto out_put_queue;
@@ -4303,9 +4300,7 @@ out_remove_devs:
remove_cdevs(tpnt);
kfree(tpnt->stats);
out_idr_remove:
- spin_lock(&st_index_lock);
- idr_remove(&st_index_idr, tpnt->index);
- spin_unlock(&st_index_lock);
+ idr_put_index(&st_index_idr, &st_index_lock, tpnt->index);
out_put_queue:
blk_put_queue(disk->queue);
out_put_disk:
@@ -4330,9 +4325,7 @@ static int st_remove(struct device *dev)
mutex_lock(&st_ref_mutex);
kref_put(&tpnt->kref, scsi_tape_release);
mutex_unlock(&st_ref_mutex);
- spin_lock(&st_index_lock);
- idr_remove(&st_index_idr, index);
- spin_unlock(&st_index_lock);
+ idr_put_index(&st_index_idr, &st_index_lock, index);
return 0;
}
--
2.1.4
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