[PATCH net-next] net: ethernet: dwmac: remove redundant null check before clk_disable_unprepare()

[Zhang Changzhong]

Because clk_prepare_enable() and clk_disable_unprepare() already checked
NULL clock parameter, so the additional checks are unnecessary, just
remove them.

Reported-by: Hulk Robot <hul...@huawei.com>
Signed-off-by: Zhang Changzhong <zhangchangzh...@huawei.com>
---
 drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c 
b/drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c
index 3c5df5e..efef547 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c
@@ -129,8 +129,7 @@ static void imx_dwmac_exit(struct platform_device *pdev, 
void *priv)
 {
        struct imx_priv_data *dwmac = priv;
 
-       if (dwmac->clk_tx)
-               clk_disable_unprepare(dwmac->clk_tx);
+       clk_disable_unprepare(dwmac->clk_tx);
        clk_disable_unprepare(dwmac->clk_mem);
 }
 
-- 
2.9.5