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clk: berlin: Add of_node_put() for of_get_parent()

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[ Upstream commit 37c381b812 ]

In berlin2_clock_setup() and berlin2q_clock_setup(), we need to
call of_node_put() for the reference returned by of_get_parent()
which has increased the refcount. We should call *_put() in fail
path or when it is not used anymore.

Fixes: 26b3b6b959 ("clk: berlin: prepare simple-mfd conversion")
Signed-off-by: Liang He <windhl@126.com>
Link: https://lore.kernel.org/r/20220708084900.311684-1-windhl@126.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Liang He 2022-07-08 16:49:00 +08:00 committed by Greg Kroah-Hartman
parent fcaff9bc6b
commit aa3898dec1
2 changed files with 9 additions and 2 deletions
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5
drivers/clk/berlin/bg2.c
View file

@ -500,12 +500,15 @@ static void __init berlin2_clock_setup(struct device_node *np)
int n, ret;
clk_data = kzalloc(struct_size(clk_data, hws, MAX_CLKS), GFP_KERNEL);
if (!clk_data)
if (!clk_data) {
of_node_put(parent_np);
return;
}
clk_data->num = MAX_CLKS;
hws = clk_data->hws;
gbase = of_iomap(parent_np, 0);
of_node_put(parent_np);
if (!gbase)
return;

6
drivers/clk/berlin/bg2q.c
View file

@ -286,19 +286,23 @@ static void __init berlin2q_clock_setup(struct device_node *np)
int n, ret;
clk_data = kzalloc(struct_size(clk_data, hws, MAX_CLKS), GFP_KERNEL);
if (!clk_data)
if (!clk_data) {
of_node_put(parent_np);
return;
}
clk_data->num = MAX_CLKS;
hws = clk_data->hws;
gbase = of_iomap(parent_np, 0);
if (!gbase) {
of_node_put(parent_np);
pr_err("%pOF: Unable to map global base\n", np);
return;
}
/* BG2Q CPU PLL is not part of global registers */
cpupll_base = of_iomap(parent_np, 1);
of_node_put(parent_np);
if (!cpupll_base) {
pr_err("%pOF: Unable to map cpupll base\n", np);
iounmap(gbase);