[PATCH 4.14 138/164] clk: qcom: common: fix legacy board-clock registration

From: Greg Kroah-Hartman
Date: Tue Dec 12 2017 - 07:52:38 EST


4.14-stable review patch. If anyone has any objections, please let me know.

------------------

From: Johan Hovold <johan@xxxxxxxxxx>


[ Upstream commit 43a51019cc8ff1b1cd2ba72e86563beb40d356fc ]

Make sure to search only the child nodes of "/clocks", rather than the
whole device-tree depth-first starting at "/clocks" when determining
whether to register a fixed clock in the legacy board-clock registration
helper.

Fixes: ee15faffef11 ("clk: qcom: common: Add API to register board clocks backwards compatibly")
Signed-off-by: Johan Hovold <johan@xxxxxxxxxx>
Signed-off-by: Stephen Boyd <sboyd@xxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/clk/qcom/common.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)

--- a/drivers/clk/qcom/common.c
+++ b/drivers/clk/qcom/common.c
@@ -143,8 +143,10 @@ static int _qcom_cc_register_board_clk(s
int ret;

clocks_node = of_find_node_by_path("/clocks");
- if (clocks_node)
- node = of_find_node_by_name(clocks_node, path);
+ if (clocks_node) {
+ node = of_get_child_by_name(clocks_node, path);
+ of_node_put(clocks_node);
+ }

if (!node) {
fixed = devm_kzalloc(dev, sizeof(*fixed), GFP_KERNEL);