devm_memremap: convert to return ERR_PTR
Make devm_memremap consistent with the error return scheme of
devm_memremap_pages to remove special casing in the pmem driver.
Cc: Christoph Hellwig <hch@lst.de>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
diff --git a/kernel/memremap.c b/kernel/memremap.c
index 0756273..0d818ce 100644
--- a/kernel/memremap.c
+++ b/kernel/memremap.c
@@ -116,7 +116,7 @@
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) {