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H A Dpci.ccee6c269 Sat Jun 08 13:35:20 CDT 2019 Minwoo Im <minwoo.im.dev@gmail.com> 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>
cee6c269 Sat Jun 08 13:35:20 CDT 2019 Minwoo Im <minwoo.im.dev@gmail.com> 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>