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 f88d4e5..7543e39 100644 (file)
--- 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);