Luis Chamberlain 11384580e3
nvme-multipath: add error handling support for add_disk() ...
We never checked for errors on add_disk() as this function
returned void. Now that this is fixed, use the shiny new
error handling.
Since we now can tell for sure when a disk was added, move
setting the bit NVME_NSHEAD_DISK_LIVE only when we did
add the disk successfully.
Nothing to do here as the cleanup is done elsewhere. We take
care and use test_and_set_bit() because it is protects against
two nvme paths simultaneously calling device_add_disk() on the
same namespace head.
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org >
Reviewed-by: Keith Busch <kbusch@kernel.org >
Signed-off-by: Christoph Hellwig <hch@lst.de >
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