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Subject[PATCH net-next] net: stmmac: remove redundant null check before clk_disable_unprepare()
Date
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 <hulkci@huawei.com>
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>
---
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 89b2b34..c553047 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -788,8 +788,7 @@ static int stmmac_init_ptp(struct stmmac_priv *priv)

static void stmmac_release_ptp(struct stmmac_priv *priv)
{
- if (priv->plat->clk_ptp_ref)
- clk_disable_unprepare(priv->plat->clk_ptp_ref);
+ clk_disable_unprepare(priv->plat->clk_ptp_ref);
stmmac_ptp_unregister(priv);
}

@@ -5108,8 +5107,7 @@ int stmmac_suspend(struct device *dev)
stmmac_mac_set(priv, priv->ioaddr, false);
pinctrl_pm_select_sleep_state(priv->device);
/* Disable clock in case of PWM is off */
- if (priv->plat->clk_ptp_ref)
- clk_disable_unprepare(priv->plat->clk_ptp_ref);
+ clk_disable_unprepare(priv->plat->clk_ptp_ref);
clk_disable_unprepare(priv->plat->pclk);
clk_disable_unprepare(priv->plat->stmmac_clk);
}
--
2.9.5
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