mtip32xx: 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 read_capacity_error error label already does what we need,
so just re-use that.

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

diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c
index 9018557..d0b4030 100644 (file)
--- a/drivers/block/mtip32xx/mtip32xx.c
+++ b/drivers/block/mtip32xx/mtip32xx.c
@@ -3633,7 +3633,9 @@ skip_create_disk:
        set_capacity(dd->disk, capacity);
 
        /* Enable the block device and add it to /dev */
-       device_add_disk(&dd->pdev->dev, dd->disk, mtip_disk_attr_groups);
+       rv = device_add_disk(&dd->pdev->dev, dd->disk, mtip_disk_attr_groups);
+       if (rv)
+               goto read_capacity_error;
 
        if (dd->mtip_svc_handler) {
                set_bit(MTIP_DDF_INIT_DONE_BIT, &dd->dd_flag);