Make devm_memremap consistent with the error return scheme of
devm_memremap_pages to remove special casing in the pmem driver.
Cc: Christoph Hellwig <h...@lst.de>
Cc: Ross Zwisler <ross.zwis...@linux.intel.com>
Signed-off-by: Dan Williams <dan.j.willi...@intel.com>
---
drivers/nvdimm/pmem.c | 16 ++++++----------
kernel/memremap.c | 2 +-
2 files changed, 7 insertions(+), 11 deletions(-)
diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c
index 0680affae04a..9805d311b1d1 100644
--- a/drivers/nvdimm/pmem.c
+++ b/drivers/nvdimm/pmem.c
@@ -150,19 +150,15 @@ static struct pmem_device *pmem_alloc(struct device *dev,
return ERR_PTR(-EBUSY);
}
- if (pmem_should_map_pages(dev)) {
- void *addr = devm_memremap_pages(dev, res);
-
- if (IS_ERR(addr))
- return addr;
- pmem->virt_addr = (void __pmem *) addr;
- } else {
+ if (pmem_should_map_pages(dev))
+ pmem->virt_addr = (void __pmem *) devm_memremap_pages(dev, res);
+ else
pmem->virt_addr = (void __pmem *) devm_memremap(dev,
pmem->phys_addr, pmem->size,
ARCH_MEMREMAP_PMEM);
- if (!pmem->virt_addr)
- return ERR_PTR(-ENXIO);
- }
+
+ if (IS_ERR(pmem->virt_addr))
+ return (void __force *) pmem->virt_addr;
return pmem;
}
diff --git a/kernel/memremap.c b/kernel/memremap.c
index 0756273437e0..0d818ce04129 100644
--- a/kernel/memremap.c
+++ b/kernel/memremap.c
@@ -116,7 +116,7 @@ void *devm_memremap(struct device *dev, resource_size_t
offset,
ptr = devres_alloc(devm_memremap_release, sizeof(*ptr), GFP_KERNEL);
if (!ptr)
- return NULL;
+ return ERR_PTR(-ENOMEM);
addr = memremap(offset, size, flags);
if (addr) {
--
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