[PATCH v1] drivers: clk: keystone: Fix parameter judgment in _of_pll_clk_init()

[Minjie Du <duminjie@vivo.com>]

The function clk_register_pll() may return NULL(in line 149) or ERR_PTR
(in line 131).
Fix: make IS_ERR_OR_NULL() judge the clk_register_pll() function return.

Signed-off-by: Minjie Du <duminjie@vivo.com>
---
 drivers/clk/keystone/pll.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clk/keystone/pll.c b/drivers/clk/keystone/pll.c
index d59a7621b..ee5c72369 100644
--- a/drivers/clk/keystone/pll.c
+++ b/drivers/clk/keystone/pll.c
@@ -209,7 +209,7 @@ static void __init _of_pll_clk_init(struct device_node *node, bool pllctrl)
 	}
 
 	clk = clk_register_pll(NULL, node->name, parent_name, pll_data);
-	if (clk) {
+	if (!IS_ERR_OR_NULL(clk)) {
 		of_clk_add_provider(node, of_clk_src_simple_get, clk);
 		return;
 	}
-- 
2.39.0