[PATCH] spi: initialize ret variable

[trix@xxxxxxxxxx]

From: Tom Rix <trix@xxxxxxxxxx>

Clang build fails with
spi-sunplus-sp7021.c:405:2: error: variable 'ret' is used
  uninitialized whenever switch default is taken
        default:
        ^~~~~~~

Restore initializing ret.

Fixes: 47e8fe57a66f ("spi: Modify irq request position and modify parameters")
Signed-off-by: Tom Rix <trix@xxxxxxxxxx>
---
 drivers/spi/spi-sunplus-sp7021.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/spi/spi-sunplus-sp7021.c b/drivers/spi/spi-sunplus-sp7021.c
index ba5ed9f7277a3..fc61578ce5c47 100644
--- a/drivers/spi/spi-sunplus-sp7021.c
+++ b/drivers/spi/spi-sunplus-sp7021.c
@@ -375,7 +375,7 @@ static int sp7021_spi_slave_transfer_one(struct spi_controller *ctlr, struct spi
 {
 	struct sp7021_spi_ctlr *pspim = spi_master_get_devdata(ctlr);
 	struct device *dev = pspim->dev;
-	int mode, ret;
+	int mode, ret = 0;
 
 	mode = SP7021_SPI_IDLE;
 	if (xfer->tx_buf && xfer->rx_buf) {
-- 
2.26.3