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| author | Luis Chamberlain <mcgrof@kernel.org> | 2021-11-04 02:04:28 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-11-18 21:17:07 +0300 |
| commit | 275e4a31a82c704db79b4e233e29ac7d8d9429d7 (patch) | |
| tree | 021408f538ad22ce7423d7f10182cb8788c16100 /drivers | |
| parent | 8e8ed252e4833f63aae054fdd4758a2a90763ed3 (diff) | |
| download | linux-275e4a31a82c704db79b4e233e29ac7d8d9429d7.tar.xz | |
nvdimm/pmem: cleanup the disk if pmem_release_disk() is yet assigned
[ Upstream commit accf58afb689f81daadde24080ea1164ad2db75f ]
Prior to devm being able to use pmem_release_disk() there are other
failure which can occur for which we must account for and release the
disk for. Address those few cases.
Fixes: 3dd60fb9d95d ("nvdimm/pmem: stop using q_usage_count as external pgmap refcount")
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
Link: https://lore.kernel.org/r/20211103230437.1639990-6-mcgrof@kernel.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/nvdimm/pmem.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c index 054154c22899..2721dd2ead0a 100644 --- a/drivers/nvdimm/pmem.c +++ b/drivers/nvdimm/pmem.c @@ -429,8 +429,10 @@ static int pmem_attach_disk(struct device *dev, bb_range.end = res->end; } - if (IS_ERR(addr)) - return PTR_ERR(addr); + if (IS_ERR(addr)) { + rc = PTR_ERR(addr); + goto out; + } pmem->virt_addr = addr; blk_queue_write_cache(q, true, fua); @@ -455,7 +457,8 @@ static int pmem_attach_disk(struct device *dev, flags = DAXDEV_F_SYNC; dax_dev = alloc_dax(pmem, disk->disk_name, &pmem_dax_ops, flags); if (IS_ERR(dax_dev)) { - return PTR_ERR(dax_dev); + rc = PTR_ERR(dax_dev); + goto out; } dax_write_cache(dax_dev, nvdimm_has_cache(nd_region)); pmem->dax_dev = dax_dev; @@ -470,8 +473,10 @@ static int pmem_attach_disk(struct device *dev, "badblocks"); if (!pmem->bb_state) dev_warn(dev, "'badblocks' notification disabled\n"); - return 0; +out: + blk_cleanup_disk(pmem->disk); + return rc; } static int nd_pmem_probe(struct device *dev) |