spi: Fix invalid sgs value
max_seg_size is unsigned int and it can have a value up to 2^32 (for eg:-RZ_DMAC driver sets dma_set_max_seg_size as U32_MAX) When this value is used in min_t() as an integer type, it becomes -1 and the value of sgs becomes 0. Fix this issue by replacing the 'int' data type with 'unsigned int' in min_t(). Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20220307184843.9994-1-biju.das.jz@bp.renesas.comSigned-off-by: Mark Brown <broonie@kernel.org>
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