spi: omap-100k: Remove set but not used variable 'dataH'

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/spi/spi-omap-100k.c: In function spi100k_read_data:
drivers/spi/spi-omap-100k.c:140:6: warning: variable dataH set but not used [-Wunused-but-set-variable]

It is not used since commit 35c9049b2704 ("Add OMAP spi100k driver")

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: zhengbin <zhengbin13@huawei.com>
Link: https://lore.kernel.org/r/1570581437-104549-2-git-send-email-zhengbin13@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/spi/spi-omap-100k.c b/drivers/spi/spi-omap-100k.c
index b955ca8796d2dee39df83186573cffb9b45fa0e3..43a4785fc89be879ec1f7ca929c2ea10069d23ac 100644 (file)
--- a/drivers/spi/spi-omap-100k.c
+++ b/drivers/spi/spi-omap-100k.c
@@ -128,7 +128,7 @@ static void spi100k_write_data(struct spi_master *master, int len, int data)
 
 static int spi100k_read_data(struct spi_master *master, int len)
 {
-       int dataH, dataL;
+       int dataL;
        struct omap1_spi100k *spi100k = spi_master_get_devdata(master);
 
        /* Always do at least 16 bits */
@@ -146,7 +146,7 @@ static int spi100k_read_data(struct spi_master *master, int len)
        udelay(1000);
 
        dataL = readw(spi100k->base + SPI_RX_LSB);
-       dataH = readw(spi100k->base + SPI_RX_MSB);
+       readw(spi100k->base + SPI_RX_MSB);
        spi100k_disable_clock(master);
 
        return dataL;