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In the function irdma_reg_user_mr, err and ret exist. Actually, one variable err is enough. Signed-off-by: Zhu Yanjun <yanjun.zhu@linux.dev> Link: https://lore.kernel.org/r/20230104064333.660344-1-yanjun.zhu@intel.com Signed-off-by: Leon Romanovsky <leon@kernel.org>