From: Dan Williams <dan.j.williams@intel.com>
To: linux-nvdimm@lists.01.org
Subject: [PATCH] libnvdimm: IS_ERR() usage cleanup
Date: Thu, 02 Jun 2016 16:21:45 -0700 [thread overview]
Message-ID: <146490970526.23141.5428974148893318100.stgit@dwillia2-desk3.amr.corp.intel.com> (raw)
Prompted by commit 287980e49ffc "remove lots of IS_ERR_VALUE abuses", I
ran make coccicheck against drivers/nvdimm/ and found that:
if (IS_ERR(x))
return PTR_ERR(x);
return 0;
...can be replaced with PTR_ERR_OR_ZERO().
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
drivers/nvdimm/bus.c | 6 ++----
drivers/nvdimm/claim.c | 5 ++---
2 files changed, 4 insertions(+), 7 deletions(-)
diff --git a/drivers/nvdimm/bus.c b/drivers/nvdimm/bus.c
index f085f8bceae8..e4882e63bece 100644
--- a/drivers/nvdimm/bus.c
+++ b/drivers/nvdimm/bus.c
@@ -395,12 +395,10 @@ int nvdimm_bus_create_ndctl(struct nvdimm_bus *nvdimm_bus)
dev = device_create(nd_class, &nvdimm_bus->dev, devt, nvdimm_bus,
"ndctl%d", nvdimm_bus->id);
- if (IS_ERR(dev)) {
+ if (IS_ERR(dev))
dev_dbg(&nvdimm_bus->dev, "failed to register ndctl%d: %ld\n",
nvdimm_bus->id, PTR_ERR(dev));
- return PTR_ERR(dev);
- }
- return 0;
+ return PTR_ERR_OR_ZERO(dev);
}
void nvdimm_bus_destroy_ndctl(struct nvdimm_bus *nvdimm_bus)
diff --git a/drivers/nvdimm/claim.c b/drivers/nvdimm/claim.c
index 8b2e3c4fb0ad..9997ff94a132 100644
--- a/drivers/nvdimm/claim.c
+++ b/drivers/nvdimm/claim.c
@@ -266,9 +266,8 @@ int devm_nsio_enable(struct device *dev, struct nd_namespace_io *nsio)
nsio->addr = devm_memremap(dev, res->start, resource_size(res),
ARCH_MEMREMAP_PMEM);
- if (IS_ERR(nsio->addr))
- return PTR_ERR(nsio->addr);
- return 0;
+
+ return PTR_ERR_OR_ZERO(nsio->addr);
}
EXPORT_SYMBOL_GPL(devm_nsio_enable);
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next reply other threads:[~2016-06-02 23:23 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-02 23:21 Dan Williams [this message]
2016-06-03 7:09 ` [PATCH] libnvdimm: IS_ERR() usage cleanup Johannes Thumshirn
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