diff options
author | Sajjan, Vikas C <vikas.cha.sajjan@hpe.com> | 2016-07-05 11:20:07 +0530 |
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committer | Dan Williams <dan.j.williams@intel.com> | 2016-07-06 15:14:48 -0700 |
commit | d1c8e0c521c111f387a17096a17e49af5dea4aa9 (patch) | |
tree | 7d3f5797f39d45a2bbe7ca33fc4e8d444717787a /drivers/dax/pmem.c | |
parent | d932dd2ccda0d890d318428466794540e081b9c0 (diff) | |
download | linux-d1c8e0c521c111f387a17096a17e49af5dea4aa9.tar.bz2 |
dax: use devm_add_action_or_reset()
If devm_add_action() fails, we are explicitly calling the cleanup to free
the resources allocated. Use the helper devm_add_action_or_reset()
and return directly in case of error, since the cleanup function
has been already called by the helper if there was any error.
Reported-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Signed-off-by: Vikas C Sajjan <vikas.cha.sajjan@hpe.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/dax/pmem.c')
-rw-r--r-- | drivers/dax/pmem.c | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/drivers/dax/pmem.c b/drivers/dax/pmem.c index 55d510e36cd1..dfb168568af1 100644 --- a/drivers/dax/pmem.c +++ b/drivers/dax/pmem.c @@ -102,21 +102,19 @@ static int dax_pmem_probe(struct device *dev) if (rc) return rc; - rc = devm_add_action(dev, dax_pmem_percpu_exit, &dax_pmem->ref); - if (rc) { - dax_pmem_percpu_exit(&dax_pmem->ref); + rc = devm_add_action_or_reset(dev, dax_pmem_percpu_exit, + &dax_pmem->ref); + if (rc) return rc; - } addr = devm_memremap_pages(dev, &res, &dax_pmem->ref, altmap); if (IS_ERR(addr)) return PTR_ERR(addr); - rc = devm_add_action(dev, dax_pmem_percpu_kill, &dax_pmem->ref); - if (rc) { - dax_pmem_percpu_kill(&dax_pmem->ref); + rc = devm_add_action_or_reset(dev, dax_pmem_percpu_kill, + &dax_pmem->ref); + if (rc) return rc; - } nd_region = to_nd_region(dev->parent); dax_region = alloc_dax_region(dev, nd_region->id, &res, |