[PATCH 2/2] lightnvm: print error when target is not found

From: Minwoo Im <minwoo.im.dev@gmail.com>
To: linux-block@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: "Klaus Birkelund" <klaus@birkelund.eu>,
	"Minwoo Im" <minwoo.im.dev@gmail.com>,
	"Matias Bjørling" <mb@lightnvm.io>,
	"Javier González" <javier@javigon.com>
Subject: [PATCH 2/2] lightnvm: print error when target is not found
Date: Sun, 28 Jul 2019 03:26:26 +0900	[thread overview]
Message-ID: <20190727182626.27991-3-minwoo.im.dev@gmail.com> (raw)
In-Reply-To: <20190727182626.27991-1-minwoo.im.dev@gmail.com>

If userspace requests target to be removed, nvm_remove_tgt() will
iterate the nvm_devices to find out the given target, but if not
found, then it should print out the error.

Cc: Matias Bjørling <mb@lightnvm.io>
Cc: Javier González <javier@javigon.com>
Signed-off-by: Minwoo Im <minwoo.im.dev@gmail.com>
---
 drivers/lightnvm/core.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/lightnvm/core.c b/drivers/lightnvm/core.c
index 4c7b48f72e80..4c89a2420a51 100644
--- a/drivers/lightnvm/core.c
+++ b/drivers/lightnvm/core.c
@@ -494,8 +494,11 @@ static int nvm_remove_tgt(struct nvm_ioctl_remove *remove)
 	}
 	up_read(&nvm_lock);
 
-	if (!t)
+	if (!t) {
+		pr_err("failed to remove target %s not found\n",
+				remove->tgtname);
 		return 1;
+	}
 
 	__nvm_remove_target(t, true);
 	kref_put(&dev->ref, nvm_free);
-- 
2.17.1

