rbd: simplify rbd_init_disk() a bit

This just simplifies a few things in rbd_init_disk(), now that the
previous patch has moved a bunch of initialization code out if it.
Done separately to facilitate review.

Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>

diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index 6e735a7..634a16c 100644 (file)
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -1870,14 +1870,12 @@ static int rbd_init_disk(struct rbd_device *rbd_dev)
 {
        struct gendisk *disk;
        struct request_queue *q;
-       int rc;
        u64 segment_size;
 
        /* create gendisk info */
-       rc = -ENOMEM;
        disk = alloc_disk(RBD_MINORS_PER_MAJOR);
        if (!disk)
-               goto out;
+               return -ENOMEM;
 
        snprintf(disk->disk_name, sizeof(disk->disk_name), RBD_DRV_NAME "%d",
                 rbd_dev->dev_id);
@@ -1887,7 +1885,6 @@ static int rbd_init_disk(struct rbd_device *rbd_dev)
        disk->private_data = rbd_dev;
 
        /* init rq */
-       rc = -ENOMEM;
        q = blk_init_queue(rbd_rq_fn, &rbd_dev->lock);
        if (!q)
                goto out_disk;
@@ -1910,11 +1907,10 @@ static int rbd_init_disk(struct rbd_device *rbd_dev)
        rbd_dev->disk = disk;
 
        return 0;
-
 out_disk:
        put_disk(disk);
-out:
-       return rc;
+
+       return -ENOMEM;
 }
 
 /*