From: Keith Busch <kbu...@kernel.org>
[ Upstream commit 192f6c29bb28bfd0a17e6ad331d09f1ec84143d0 ]
If the driver has to unbind from the controller for an early failure
before the subsystem has been set up, there won't be a subsystem holding
the controller's instance, so the controller needs to free its own
instance in this case.
Fixes: 733e4b69d508d ("nvme: Assign subsys instance from first ctrl")
Signed-off-by: Keith Busch <kbu...@kernel.org>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulka...@wdc.com>
Reviewed-by: Christoph Hellwig <h...@lst.de>
Signed-off-by: Sagi Grimberg <s...@grimberg.me>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
drivers/nvme/host/core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index f38548e6d55ec..fa0039dcacc66 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -4148,7 +4148,7 @@ static void nvme_free_ctrl(struct device *dev)
container_of(dev, struct nvme_ctrl, ctrl_device);
struct nvme_subsystem *subsys = ctrl->subsys;
- if (subsys && ctrl->instance != subsys->instance)
+ if (!subsys || ctrl->instance != subsys->instance)
ida_simple_remove(&nvme_instance_ida, ctrl->instance);
kfree(ctrl->effects);
--
2.25.1
