diff options
Diffstat (limited to 'drivers/block/z2ram.c')
| -rw-r--r-- | drivers/block/z2ram.c | 25 |
1 files changed, 6 insertions, 19 deletions
diff --git a/drivers/block/z2ram.c b/drivers/block/z2ram.c index c1d20818e649..4eef218108c6 100644 --- a/drivers/block/z2ram.c +++ b/drivers/block/z2ram.c @@ -236,11 +236,8 @@ static int z2_open(struct block_device *bdev, fmode_t mode) case Z2MINOR_Z2ONLY: z2ram_map = kmalloc(max_z2_map, GFP_KERNEL); - if (z2ram_map == NULL) { - printk(KERN_ERR DEVICE_NAME - ": cannot get mem for z2ram_map\n"); + if (!z2ram_map) goto err_out; - } get_z2ram(); @@ -253,11 +250,8 @@ static int z2_open(struct block_device *bdev, fmode_t mode) case Z2MINOR_CHIPONLY: z2ram_map = kmalloc(max_chip_map, GFP_KERNEL); - if (z2ram_map == NULL) { - printk(KERN_ERR DEVICE_NAME - ": cannot get mem for z2ram_map\n"); + if (!z2ram_map) goto err_out; - } get_chipram(); @@ -323,27 +317,20 @@ static const struct blk_mq_ops z2_mq_ops = { static int z2ram_register_disk(int minor) { - struct request_queue *q; struct gendisk *disk; - disk = alloc_disk(1); - if (!disk) - return -ENOMEM; - - q = blk_mq_init_queue(&tag_set); - if (IS_ERR(q)) { - put_disk(disk); - return PTR_ERR(q); - } + disk = blk_mq_alloc_disk(&tag_set, NULL); + if (IS_ERR(disk)) + return PTR_ERR(disk); disk->major = Z2RAM_MAJOR; disk->first_minor = minor; + disk->minors = 1; disk->fops = &z2_fops; if (minor) sprintf(disk->disk_name, "z2ram%d", minor); else sprintf(disk->disk_name, "z2ram"); - disk->queue = q; z2ram_gendisk[minor] = disk; add_disk(disk); |