1 files changed, 3 insertions, 2 deletions

diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c
index bc28776ba76a..54d0db116153 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);