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In the previous iteration of the while loop, the "ret" may have been assigned a value of 0, so the error return code -EINVAL may have been incorrectly set to 0. To fix set valid return code before calling to goto. Also investigate each case separately as Andy suggessted. Fixes:e711f968c4("IB/srp: replace custom implementation of hex2bin()") Fixes:2a174df0c6("IB/srp: Use kstrtoull() instead of simple_strtoull()") Fixes:19f313438c("IB/srp: Add RDMA/CM support") Signed-off-by: Wang Yufen <wangyufen@huawei.com> Link: https://lore.kernel.org/r/1669953638-11747-2-git-send-email-wangyufen@huawei.com Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Leon Romanovsky <leon@kernel.org>