pktcdvd: add error handling support for add_disk()

We never checked for errors on add_disk() as this function
returned void. Now that this is fixed, use the shiny new
error handling.

The out_mem2 error label already does what we need so
re-use that.

Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index cb52cce6fb0393e653c839dd46a1255f70e3b93e..e48d4771d4c1ad9ed71944bf7b3199b426d9e34f 100644 (file)
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -2728,7 +2728,9 @@ static int pkt_setup_dev(dev_t dev, dev_t* pkt_dev)
        /* inherit events of the host device */
        disk->events = pd->bdev->bd_disk->events;
 
-       add_disk(disk);
+       ret = add_disk(disk);
+       if (ret)
+               goto out_mem2;
 
        pkt_sysfs_dev_new(pd);
        pkt_debugfs_dev_new(pd);