nvme: Free ctrl device name on init failure

nvme: Free ctrl device name on init failure

BugLink: https://bugs.launchpad.net/bugs/1857158
[ Upstream commit d6a2b9535d1e52bea269c138614c4801469d10e1 ]

Free the kobject name that was allocated for the controller device on
failure rather than its parent.

Fixes: d22524a4782a9 ("nvme: switch controller refcounting to use struct device")
Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Kleber Sacilotto de Souza <kleber.souza@canonical.com>