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| author | Hiep Cao Minh <cm-hiep@jinso.co.jp> | 2015-04-30 11:12:12 +0900 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2015-05-07 13:56:46 +0100 |
| commit | 6310372dc34bae740db280d3354b2e470cd31284 (patch) | |
| tree | cafb388302f34e5218ae07be6a5186ca4b2ac978 /drivers/spi/spi-rspi.c | |
| parent | 8634dafac6f58c91ab2461a68e8d7ea18ec0486b (diff) | |
| download | linux-6310372dc34bae740db280d3354b2e470cd31284.tar.gz linux-6310372dc34bae740db280d3354b2e470cd31284.tar.bz2 linux-6310372dc34bae740db280d3354b2e470cd31284.zip | |
spi: rspi: Re-do the returning value of rspi_dma_check_then_transfer
To reduce indentation and complexity of code, insteeds of returning zero
the function rspi_dma_check_then_transfer should return rspi_dma_transfer
directly after checking error.
Signed-off-by: Hiep Cao Minh <cm-hiep@jinso.co.jp>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi/spi-rspi.c')
| -rw-r--r-- | drivers/spi/spi-rspi.c | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/drivers/spi/spi-rspi.c b/drivers/spi/spi-rspi.c index 70a7a7b168fd..568ea41625f5 100644 --- a/drivers/spi/spi-rspi.c +++ b/drivers/spi/spi-rspi.c @@ -665,15 +665,12 @@ static bool rspi_can_dma(struct spi_master *master, struct spi_device *spi, static int rspi_dma_check_then_transfer(struct rspi_data *rspi, struct spi_transfer *xfer) { - if (rspi->master->can_dma && __rspi_can_dma(rspi, xfer)) { - /* rx_buf can be NULL on RSPI on SH in TX-only Mode */ - int ret = rspi_dma_transfer(rspi, &xfer->tx_sg, - xfer->rx_buf ? &xfer->rx_sg : NULL); - if (ret != -EAGAIN) - return 0; - } + if (!rspi->master->can_dma || !__rspi_can_dma(rspi, xfer)) + return -EAGAIN; - return -EAGAIN; + /* rx_buf can be NULL on RSPI on SH in TX-only Mode */ + return rspi_dma_transfer(rspi, &xfer->tx_sg, + xfer->rx_buf ? &xfer->rx_sg : NULL); } static int rspi_common_transfer(struct rspi_data *rspi, |