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path: root/drivers/clk/clk.c
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Diffstat (limited to 'drivers/clk/clk.c')
-rw-r--r--drivers/clk/clk.c22
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index 2253c154a824..25371c91a58f 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -418,6 +418,9 @@ static struct clk_core *clk_core_get(struct clk_core *core, u8 p_index)
if (IS_ERR(hw))
return ERR_CAST(hw);
+ if (!hw)
+ return NULL;
+
return hw->core;
}
@@ -939,6 +942,25 @@ int clk_rate_exclusive_get(struct clk *clk)
}
EXPORT_SYMBOL_GPL(clk_rate_exclusive_get);
+static void devm_clk_rate_exclusive_put(void *data)
+{
+ struct clk *clk = data;
+
+ clk_rate_exclusive_put(clk);
+}
+
+int devm_clk_rate_exclusive_get(struct device *dev, struct clk *clk)
+{
+ int ret;
+
+ ret = clk_rate_exclusive_get(clk);
+ if (ret)
+ return ret;
+
+ return devm_add_action_or_reset(dev, devm_clk_rate_exclusive_put, clk);
+}
+EXPORT_SYMBOL_GPL(devm_clk_rate_exclusive_get);
+
static void clk_core_unprepare(struct clk_core *core)
{
lockdep_assert_held(&prepare_lock);