spi/bcm63xx: don't substract prepend length from total length

The spi command must include the full message length including any
prepended writes, else transfers larger than 256 bytes will be
incomplete.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Acked-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
Cc: stable@vger.kernel.org

diff --git a/drivers/spi/spi-bcm63xx.c b/drivers/spi/spi-bcm63xx.c
index 80d56b214eb51af96ceb9e9d55ffea6bbb2d7302..89331cd0ddaa9a2ae9fd8104545b4f2df158494c 100644 (file)
--- a/drivers/spi/spi-bcm63xx.c
+++ b/drivers/spi/spi-bcm63xx.c
@@ -169,8 +169,6 @@ static int bcm63xx_txrx_bufs(struct spi_device *spi, struct spi_transfer *first,
                               transfer_list);
        }
 
-       len -= prepend_len;
-
        init_completion(&bs->done);
 
        /* Fill in the Message control register */