From cee6c269b016ba89c62e34d6bccb103ee2c7de4f Mon Sep 17 00:00:00 2001
From: Minwoo Im <minwoo.im.dev@gmail.com>
Date: Sun, 9 Jun 2019 03:35:20 +0900
Subject: [PATCH] nvme-pci: properly report state change failure in
nvme_reset_work
If the state change to NVME_CTRL_CONNECTING fails, the dmesg is going to
be like:
[ 293.689160] nvme nvme0: failed to mark controller CONNECTING
[ 293.689160] nvme nvme0: Removing after probe failure status: 0
Even it prints the first line to indicate the situation, the second line
is not proper because the status is 0 which means normally success of
the previous operation.
This patch makes it indicate the proper error value when it fails.
[ 25.932367] nvme nvme0: failed to mark controller CONNECTING
[ 25.932369] nvme nvme0: Removing after probe failure status: -16
This situation is able to be easily reproduced by:
root@target:~# rmmod nvme && modprobe nvme && rmmod nvme
Signed-off-by: Minwoo Im <minwoo.im.dev@gmail.com>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
drivers/nvme/host/pci.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index 092c8403b3062..d308ae7e2e112 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -2517,6 +2517,7 @@ static void nvme_reset_work(struct work_struct *work)
if (!nvme_change_ctrl_state(&dev->ctrl, NVME_CTRL_CONNECTING)) {
dev_warn(dev->ctrl.device,
"failed to mark controller CONNECTING\n");
+ result = -EBUSY;
goto out;
}
--
GitLab