From: Hannes Reinecke <hare@suse.de>
Date: Wed, 25 Jul 2018 06:34:45 +0000 (+0200)
Subject: nvmet: only check for filebacking on -ENOTBLK
X-Git-Tag: v4.19~515^2~5^2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=405a7519607e7a364114896264440c0f87b325c0;p=platform%2Fkernel%2Flinux-rpi3.git

nvmet: only check for filebacking on -ENOTBLK

We only need to check for a file-backed namespace if
nvmet_bdev_ns_enable() returns -ENOTBLK. For any other error
it's pointless as the open() error will remain the same.

Fixes: d5eff33e ("nvmet: add simple file backed ns support")
Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
---

diff --git a/drivers/nvme/target/core.c b/drivers/nvme/target/core.c
index 74d4b78..9838103f 100644
--- a/drivers/nvme/target/core.c
+++ b/drivers/nvme/target/core.c
@@ -339,7 +339,7 @@ int nvmet_ns_enable(struct nvmet_ns *ns)
 		goto out_unlock;
 
 	ret = nvmet_bdev_ns_enable(ns);
-	if (ret)
+	if (ret == -ENOTBLK)
 		ret = nvmet_file_ns_enable(ns);
 	if (ret)
 		goto out_unlock;