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authorLuis Chamberlain <mcgrof@kernel.org>2021-11-04 02:04:28 +0300
committerJens Axboe <axboe@kernel.dk>2021-11-04 14:48:50 +0300
commitaccf58afb689f81daadde24080ea1164ad2db75f (patch)
treebb9612c45556edc74e36a1a61ebffe65f593fc3f /drivers/nvdimm/pmem.c
parentdc104f4bb2d0a652dee010e47bc89c1ad2ab37c9 (diff)
downloadlinux-accf58afb689f81daadde24080ea1164ad2db75f.tar.xz
nvdimm/pmem: cleanup the disk if pmem_release_disk() is yet assigned
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>
Diffstat (limited to 'drivers/nvdimm/pmem.c')
-rw-r--r--drivers/nvdimm/pmem.c13
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c
index a67a3ad1d413..cbb3662391c2 100644
--- a/drivers/nvdimm/pmem.c
+++ b/drivers/nvdimm/pmem.c
@@ -457,8 +457,10 @@ 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);
@@ -483,7 +485,8 @@ 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;
@@ -498,8 +501,10 @@ 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)