As we now free the constraints in regulator_dev_release we will still
call free on the constraints pointer even if we went down an error path
in regulator_register, as such we need to clear to the pointer to ensure
the kfree in regulator_dev_release is a no-op.

Fixes: 29f5f4860a8e ("regulator: core: Move more deallocation into class 
unregister")
Signed-off-by: Charles Keepax <[email protected]>
---
 drivers/regulator/core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 744c988..a7936ab 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -3980,6 +3980,7 @@ unset_supplies:
 scrub:
        regulator_ena_gpio_free(rdev);
        kfree(rdev->constraints);
+       rdev->constraints = NULL;
 wash:
        device_unregister(&rdev->dev);
        /* device core frees rdev */
-- 
2.1.4

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