spi: Make max_tx and max_rx the same type

Prevents spurious compiler warnings.

Signed-off-by: Mark Brown <broonie@linaro.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 49313dd0a144..f3fb1acf9ac1 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -644,7 +644,7 @@ static int spi_map_msg(struct spi_master *master, struct spi_message *msg)
         struct device *tx_dev, *rx_dev;
         struct spi_transfer *xfer;
         void *tmp;
-        size_t max_tx, max_rx;
+        unsigned int max_tx, max_rx;
         int ret;
 
         if (master->flags & (SPI_MASTER_MUST_RX | SPI_MASTER_MUST_TX)) {