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Diffstat (limited to 'block/blk-mq-sysfs.c')
-rw-r--r--block/blk-mq-sysfs.c16
1 files changed, 10 insertions, 6 deletions
diff --git a/block/blk-mq-sysfs.c b/block/blk-mq-sysfs.c
index 674786574075..c08426975856 100644
--- a/block/blk-mq-sysfs.c
+++ b/block/blk-mq-sysfs.c
@@ -206,7 +206,7 @@ static int blk_mq_register_hctx(struct blk_mq_hw_ctx *hctx)
void blk_mq_unregister_dev(struct device *dev, struct request_queue *q)
{
struct blk_mq_hw_ctx *hctx;
- int i;
+ unsigned long i;
lockdep_assert_held(&q->sysfs_dir_lock);
@@ -255,7 +255,8 @@ void blk_mq_sysfs_init(struct request_queue *q)
int __blk_mq_register_dev(struct device *dev, struct request_queue *q)
{
struct blk_mq_hw_ctx *hctx;
- int ret, i;
+ unsigned long i, j;
+ int ret;
WARN_ON_ONCE(!q->kobj.parent);
lockdep_assert_held(&q->sysfs_dir_lock);
@@ -278,8 +279,10 @@ out:
return ret;
unreg:
- while (--i >= 0)
- blk_mq_unregister_hctx(q->queue_hw_ctx[i]);
+ queue_for_each_hw_ctx(q, hctx, j) {
+ if (j < i)
+ blk_mq_unregister_hctx(hctx);
+ }
kobject_uevent(q->mq_kobj, KOBJ_REMOVE);
kobject_del(q->mq_kobj);
@@ -290,7 +293,7 @@ unreg:
void blk_mq_sysfs_unregister(struct request_queue *q)
{
struct blk_mq_hw_ctx *hctx;
- int i;
+ unsigned long i;
mutex_lock(&q->sysfs_dir_lock);
if (!q->mq_sysfs_init_done)
@@ -306,7 +309,8 @@ unlock:
int blk_mq_sysfs_register(struct request_queue *q)
{
struct blk_mq_hw_ctx *hctx;
- int i, ret = 0;
+ unsigned long i;
+ int ret = 0;
mutex_lock(&q->sysfs_dir_lock);
if (!q->mq_sysfs_init_done)