[PATCH v8 1/9] dax/bus: Use dax_region_put() in alloc_dax_region() error path

[Smita Koralahalli]

alloc_dax_region() calls kref_init() on the dax_region early in the
function, but the error path for sysfs_create_groups() failure uses
kfree() directly to free the dax_region. This bypasses the kref lifecycle.

Use dax_region_put() instead to handle kref lifecycle correctly.

Suggested-by: Jonathan Cameron <jonathan.cameron@xxxxxxxxxx>
Signed-off-by: Smita Koralahalli <Smita.KoralahalliChannabasappa@xxxxxxx>
---
 drivers/dax/bus.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dax/bus.c b/drivers/dax/bus.c
index c94c09622516..299134c9b294 100644
--- a/drivers/dax/bus.c
+++ b/drivers/dax/bus.c
@@ -668,7 +668,7 @@ struct dax_region *alloc_dax_region(struct device *parent, int region_id,
 	};
 
 	if (sysfs_create_groups(&parent->kobj, dax_region_attribute_groups)) {
-		kfree(dax_region);
+		dax_region_put(dax_region);
 		return NULL;
 	}
 
-- 
2.17.1