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spi: fsl-lpspi: quit reading rx fifo under error condition 

In case that error occurs during waiting for txfifo empty, it is
not necessary to read rx fifo. It's better to return directly.

Signed-off-by: Gao Pan <pandy.gao@nxp.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Gao Pan 2016-12-02 11:50:01 +08:00 committed by Mark Brown
parent b6787b6807
commit d989eed207
1 changed files with 4 additions and 1 deletions
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5
drivers/spi/spi-fsl-lpspi.c
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@ -350,9 +350,12 @@ static int fsl_lpspi_transfer_one(struct spi_master *master,
}
ret = fsl_lpspi_txfifo_empty(fsl_lpspi);
if (ret)
return ret;
fsl_lpspi_read_rx_fifo(fsl_lpspi);
return ret;
return 0;
}
static int fsl_lpspi_transfer_one_msg(struct spi_master *master,