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spi/xilinx: Code cleanup

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On the transmission loop, check for remaining bytes at the loop
condition.

This way we can handle transmissions of 0 bytes and clean the code.

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Ricardo Ribalda Delgado 2015-01-28 13:23:42 +01:00 committed by Mark Brown
parent 899929baba
commit a87cbca0ac
1 changed files with 1 additions and 5 deletions
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6
drivers/spi/spi-xilinx.c
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@ -248,7 +248,7 @@ static int xilinx_spi_txrx_bufs(struct spi_device *spi, struct spi_transfer *t)
xspi->remaining_bytes = t->len;
reinit_completion(&xspi->done);
for (;;) {
while (xspi->remaining_bytes) {
u16 cr;
int n_words;
@ -278,10 +278,6 @@ static int xilinx_spi_txrx_bufs(struct spi_device *spi, struct spi_transfer *t)
/* Read out all the data from the Rx FIFO */
while (n_words--)
xspi->rx_fn(xspi);
/* See if there is more data to send */
if (xspi->remaining_bytes <= 0)
break;
}
return t->len - xspi->remaining_bytes;