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-rw-r--r--block/blk-sysfs.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c
index bc28776ba76..54d0db11615 100644
--- a/block/blk-sysfs.c
+++ b/block/blk-sysfs.c
@@ -207,12 +207,13 @@ queue_attr_store(struct kobject *kobj, struct attribute *attr,
const char *page, size_t length)
{
struct queue_sysfs_entry *entry = to_queue(attr);
- struct request_queue *q = container_of(kobj, struct request_queue, kobj);
-
+ struct request_queue *q;
ssize_t res;
if (!entry->store)
return -EIO;
+
+ q = container_of(kobj, struct request_queue, kobj);
mutex_lock(&q->sysfs_lock);
if (test_bit(QUEUE_FLAG_DEAD, &q->queue_flags)) {
mutex_unlock(&q->sysfs_lock);