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spi: fsl-espi: improve return value handling in fsl_espi_bufs
Return a proper status code from fsl_espi_bufs instead of returning the number of remaining words and let the caller evaluate it. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
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@ -258,7 +258,7 @@ static int fsl_espi_bufs(struct spi_device *spi, struct spi_transfer *t)
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/* disable rx ints */
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/* disable rx ints */
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mpc8xxx_spi_write_reg(®_base->mask, 0);
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mpc8xxx_spi_write_reg(®_base->mask, 0);
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return mpc8xxx_spi->count;
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return mpc8xxx_spi->count > 0 ? -EMSGSIZE : 0;
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}
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}
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static int fsl_espi_do_trans(struct spi_message *m, struct spi_transfer *trans)
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static int fsl_espi_do_trans(struct spi_message *m, struct spi_transfer *trans)
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@ -288,9 +288,6 @@ static int fsl_espi_do_trans(struct spi_message *m, struct spi_transfer *trans)
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if (trans->len)
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if (trans->len)
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ret = fsl_espi_bufs(spi, trans);
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ret = fsl_espi_bufs(spi, trans);
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if (ret)
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ret = -EMSGSIZE;
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if (trans->delay_usecs)
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if (trans->delay_usecs)
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udelay(trans->delay_usecs);
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udelay(trans->delay_usecs);
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