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If of_find_device_by_node() succeeds, ingenic_ecc_get() doesn't have a corresponding put_device(). Thus add put_device() to fix the exception handling. Fixes: 15de8c6efd0e ("mtd: rawnand: ingenic: Separate top-level and SoC specific code") Signed-off-by: Miaoqian Lin <linmq006@gmail.com> Reviewed-by: Paul Cercueil <paul@crapouillou.net> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20211230072751.21622-1-linmq006@gmail.com