From: Minwoo Im <minwoo.im.dev@gmail.com>
Date: Thu, 5 Sep 2019 19:04:33 +0000 (+0200)
Subject: lightnvm: print error when target is not found
X-Git-Tag: for-5.4/block-2019-09-16~31
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=362cd2b1fad43b7de653b40fe75142a850791ce7;p=linux-2.6-block.git

lightnvm: print error when target is not found

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 an error.

Signed-off-by: Minwoo Im <minwoo.im.dev@gmail.com>
Updated output string and patch description.
Signed-off-by: Matias Bjørling <mb@lightnvm.io>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---

diff --git a/drivers/lightnvm/core.c b/drivers/lightnvm/core.c
index f88d4e57cff8..7543e395a2c6 100644
--- a/drivers/lightnvm/core.c
+++ b/drivers/lightnvm/core.c
@@ -495,8 +495,11 @@ 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\n",
+				remove->tgtname);
 		return 1;
+	}
 
 	__nvm_remove_target(t, true);
 	kref_put(&dev->ref, nvm_free);