spi/xilinx: Code cleanup

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>

1 files changed, 1 insertions, 5 deletions

diff --git a/drivers/spi/spi-xilinx.c b/drivers/spi/spi-xilinx.c
index d933207c212c..a0f7c9d4a349 100644
--- a/drivers/spi/spi-xilinx.c
+++ b/drivers/spi/spi-xilinx.c
@@ -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;