Right now, only static dax regions have a valid @pgmap pointer in its struct dev_dax. Dynamic dax case however, do not.
In preparation for device-dax compound pagemap support, make sure that dev_dax pgmap field is set after it has been allocated and initialized. Suggested-by: Dan Williams <[email protected]> Signed-off-by: Joao Martins <[email protected]> --- drivers/dax/device.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/dax/device.c b/drivers/dax/device.c index 0b82159b3564..6e348b5f9d45 100644 --- a/drivers/dax/device.c +++ b/drivers/dax/device.c @@ -426,6 +426,8 @@ int dev_dax_probe(struct dev_dax *dev_dax) } pgmap->type = MEMORY_DEVICE_GENERIC; + dev_dax->pgmap = pgmap; + addr = devm_memremap_pages(dev, pgmap); if (IS_ERR(addr)) return PTR_ERR(addr); -- 2.17.1
