[PATCH v2 1/2] clk: imx: imx6q: Fix device node reference leak in pll6_bypassed()

[Felix Gu]

The function pll6_bypassed() calls of_parse_phandle_with_args()
but never calls of_node_put() to release the reference, causing
a memory leak.

Fix this by adding proper cleanup calls on all exit paths.

Fixes: 3cc48976e9763 ("clk: imx6q: handle ENET PLL bypass")
Signed-off-by: Felix Gu <ustc.gu at gmail.com>
---
 drivers/clk/imx/clk-imx6q.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/imx/clk-imx6q.c b/drivers/clk/imx/clk-imx6q.c
index bf4c1d9c9928..1d8e8f0891a3 100644
--- a/drivers/clk/imx/clk-imx6q.c
+++ b/drivers/clk/imx/clk-imx6q.c
@@ -238,8 +238,11 @@ static bool pll6_bypassed(struct device_node *node)
 			return false;
 
 		if (clkspec.np == node &&
-		    clkspec.args[0] == IMX6QDL_PLL6_BYPASS)
+		    clkspec.args[0] == IMX6QDL_PLL6_BYPASS) {
+			of_node_put(clkspec.np);
 			break;
+		}
+		of_node_put(clkspec.np);
 	}
 
 	/* PLL6 bypass is not part of the assigned clock list */
@@ -249,6 +252,7 @@ static bool pll6_bypassed(struct device_node *node)
 	ret = of_parse_phandle_with_args(node, "assigned-clock-parents",
 					 "#clock-cells", index, &clkspec);
 
+	of_node_put(clkspec.np);
 	if (clkspec.args[0] != IMX6QDL_CLK_PLL6)
 		return true;
 

-- 
2.43.0