dax: convert devm_create_dax_dev to PTR_ERR
For sub-division support we need access to the dax_dev created by
devm_create_dax_dev().
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
diff --git a/drivers/dax/dax.h b/drivers/dax/dax.h
index d8b8f1f..ddd829a 100644
--- a/drivers/dax/dax.h
+++ b/drivers/dax/dax.h
@@ -13,12 +13,13 @@
#ifndef __DAX_H__
#define __DAX_H__
struct device;
+struct dax_dev;
struct resource;
struct dax_region;
void dax_region_put(struct dax_region *dax_region);
struct dax_region *alloc_dax_region(struct device *parent,
int region_id, struct resource *res, unsigned int align,
void *addr, unsigned long flags);
-int devm_create_dax_dev(struct dax_region *dax_region, struct resource *res,
- int count);
+struct dax_dev *devm_create_dax_dev(struct dax_region *dax_region,
+ struct resource *res, int count);
#endif /* __DAX_H__ */