[PATCH] spi: dw: Fix error return code in dw_spi_bt1_probe()

[Zhang Changzhong]

Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.

Fixes: abf00907538e ("spi: dw: Add Baikal-T1 SPI Controller glue driver")
Reported-by: Hulk Robot <hul...@huawei.com>
Signed-off-by: Zhang Changzhong <zhangchangzh...@huawei.com>
---
 drivers/spi/spi-dw-bt1.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/spi/spi-dw-bt1.c b/drivers/spi/spi-dw-bt1.c
index f382dfad..c279b78 100644
--- a/drivers/spi/spi-dw-bt1.c
+++ b/drivers/spi/spi-dw-bt1.c
@@ -280,8 +280,10 @@ static int dw_spi_bt1_probe(struct platform_device *pdev)
        dws->bus_num = pdev->id;
        dws->reg_io_width = 4;
        dws->max_freq = clk_get_rate(dwsbt1->clk);
-       if (!dws->max_freq)
+       if (!dws->max_freq) {
+               ret = -EINVAL;
                goto err_disable_clk;
+       }
 
        init_func = device_get_match_data(&pdev->dev);
        ret = init_func(pdev, dwsbt1);
-- 
2.9.5