driver core: test_async: fix an error code

The test_platform_device_register_node() function should return error
pointers instead of NULL.  That is what the callers are expecting.

Fixes: 57ea974fb871 ("driver core: Rewrite test_async_driver_probe to cover serialization and NUMA affinity")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://lore.kernel.org/r/1e11ed19-e1f6-43d8-b352-474134b7c008@moroto.mountain
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/base/test/test_async_driver_probe.c b/drivers/base/test/test_async_driver_probe.c
index 929410d..3465800 100644 (file)
--- a/drivers/base/test/test_async_driver_probe.c
+++ b/drivers/base/test/test_async_driver_probe.c
@@ -84,7 +84,7 @@ test_platform_device_register_node(char *name, int id, int nid)
 
        pdev = platform_device_alloc(name, id);
        if (!pdev)
-               return NULL;
+               return ERR_PTR(-ENOMEM);
 
        if (nid != NUMA_NO_NODE)
                set_dev_node(&pdev->dev, nid);