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16c57fff83
Use IS_ERR_OR_NULL() to make the code cleaner. Signed-off-by: Miaoqian Lin <linmq006@gmail.com> Link: https://lore.kernel.org/r/20211212142226.23674-1-linmq006@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>