From: Yang Yingliang <yangyingliang@xxxxxxxxxx>
[ Upstream commit f1d97a37f975ac615e4d6875c27516150642d499 ]
The device_node pointer returned by of_find_compatible_node() with
refcount incremented, when finish using it, the refcount need be
decreased.
Fixes: d7964de8a8ea ("clk: mediatek: Add new clock driver to handle FHCTL hardware")
Signed-off-by: Yang Yingliang <yangyingliang@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20221229092946.4162345-1-yangyingliang@xxxxxxxxxx
[sboyd@xxxxxxxxxx: Also unmap on error]
Signed-off-by: Stephen Boyd <sboyd@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/clk/mediatek/clk-pllfh.c | 11 +++++++++--
1 file changed, 9 insertions(+), 2 deletions(-)
diff --git a/drivers/clk/mediatek/clk-pllfh.c b/drivers/clk/mediatek/clk-pllfh.c
index f48780bec5077..f135b32c6dbed 100644
--- a/drivers/clk/mediatek/clk-pllfh.c
+++ b/drivers/clk/mediatek/clk-pllfh.c
@@ -75,13 +75,13 @@ void fhctl_parse_dt(const u8 *compatible_node, struct mtk_pllfh_data *pllfhs,
base = of_iomap(node, 0);
if (!base) {
pr_err("%s(): ioremap failed\n", __func__);
- return;
+ goto out_node_put;
}
num_clocks = of_clk_get_parent_count(node);
if (!num_clocks) {
pr_err("%s(): failed to get clocks property\n", __func__);
- return;
+ goto err;
}
for (i = 0; i < num_clocks; i++) {
@@ -102,6 +102,13 @@ void fhctl_parse_dt(const u8 *compatible_node, struct mtk_pllfh_data *pllfhs,
pllfh->state.ssc_rate = ssc_rate;
pllfh->state.base = base;
}
+
+out_node_put:
+ of_node_put(node);
+ return;
+err:
+ iounmap(base);
+ goto out_node_put;
}
static void pllfh_init(struct mtk_fh *fh, struct mtk_pllfh_data *pllfh_data)
--
2.39.2
