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In this driver file, many functions call sub-functions and use ret to store the error code of the sub-functions. However, instead of directly returning ret to the caller, they use a converted error code, which prevents the end-user from clearly understanding the root cause of the error. Therefore, the code needs to be modified to directly return the error code from the sub-functions. Signed-off-by: Longfang Liu <liulongfang@huawei.com> Reviewed-by: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com> Link: https://lore.kernel.org/r/20250510081155.55840-7-liulongfang@huawei.com Signed-off-by: Alex Williamson <alex.williamson@redhat.com>