aoe: 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.

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

diff --git a/drivers/block/aoe/aoeblk.c b/drivers/block/aoe/aoeblk.c
index 06b360f..e436b0e 100644 (file)
--- a/drivers/block/aoe/aoeblk.c
+++ b/drivers/block/aoe/aoeblk.c
@@ -417,7 +417,9 @@ aoeblk_gdalloc(void *vp)
 
        spin_unlock_irqrestore(&d->lock, flags);
 
-       device_add_disk(NULL, gd, aoe_attr_groups);
+       err = device_add_disk(NULL, gd, aoe_attr_groups);
+       if (err)
+               goto out_disk_cleanup;
        aoedisk_add_debugfs(d);
 
        spin_lock_irqsave(&d->lock, flags);
@@ -426,6 +428,8 @@ aoeblk_gdalloc(void *vp)
        spin_unlock_irqrestore(&d->lock, flags);
        return;
 
+out_disk_cleanup:
+       blk_cleanup_disk(gd);
 err_tagset:
        blk_mq_free_tag_set(set);
 err_mempool: