clk: sunxi: pll2: Fix return value check in sun4i_pll2_setup()

In case of error, the functions clk_register_composite() and
clk_register_divider() returns ERR_PTR() and never returns NULL.
The NULL test in the return value check should be replaced with
IS_ERR().

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>

diff --git a/drivers/clk/sunxi/clk-a10-pll2.c b/drivers/clk/sunxi/clk-a10-pll2.c
index 0ee1f363e4be154749d4b37a07e215dbd705d76e..d8eab90ae661c245507fc31d11139ff23ff28745 100644 (file)
--- a/drivers/clk/sunxi/clk-a10-pll2.c
+++ b/drivers/clk/sunxi/clk-a10-pll2.c
@@ -73,7 +73,7 @@ static void __init sun4i_pll2_setup(struct device_node *node,
                                          SUN4I_PLL2_PRE_DIV_WIDTH,
                                          CLK_DIVIDER_ONE_BASED | CLK_DIVIDER_ALLOW_ZERO,
                                          &sun4i_a10_pll2_lock);
-       if (!prediv_clk) {
+       if (IS_ERR(prediv_clk)) {
                pr_err("Couldn't register the prediv clock\n");
                goto err_free_array;
        }
@@ -106,7 +106,7 @@ static void __init sun4i_pll2_setup(struct device_node *node,
                                          &mult->hw, &clk_multiplier_ops,
                                          &gate->hw, &clk_gate_ops,
                                          CLK_SET_RATE_PARENT);
-       if (!base_clk) {
+       if (IS_ERR(base_clk)) {
                pr_err("Couldn't register the base multiplier clock\n");
                goto err_free_multiplier;
        }