linux-kernel - [PATCH 5.10 12/63] opp: Call the missing clk

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Message-Id: <20210104155709.406778571@linuxfoundation.org>
Date:   Mon,  4 Jan 2021 16:57:05 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Viresh Kumar <viresh.kumar@...aro.org>
Subject: [PATCH 5.10 12/63] opp: Call the missing clk_put() on error

From: Viresh Kumar <viresh.kumar@...aro.org>

commit 0e1d9ca1766f5d95fb881f57b6c4a1ffa63d4648 upstream.

Fix the clock reference counting by calling the missing clk_put() in the
error path.

Cc: v5.10 <stable@...r.kernel.org> # v5.10
Fixes: dd461cd9183f ("opp: Allow dev_pm_opp_get_opp_table() to return -EPROBE_DEFER")
Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/opp/core.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

--- a/drivers/opp/core.c
+++ b/drivers/opp/core.c
@@ -1111,7 +1111,7 @@ static struct opp_table *_allocate_opp_t
 	ret = dev_pm_opp_of_find_icc_paths(dev, opp_table);
 	if (ret) {
 		if (ret == -EPROBE_DEFER)
-			goto remove_opp_dev;
+			goto put_clk;
 
 		dev_warn(dev, "%s: Error finding interconnect paths: %d\n",
 			 __func__, ret);
@@ -1125,6 +1125,9 @@ static struct opp_table *_allocate_opp_t
 	list_add(&opp_table->node, &opp_tables);
 	return opp_table;
 
+put_clk:
+	if (!IS_ERR(opp_table->clk))
+		clk_put(opp_table->clk);
 remove_opp_dev:
 	_remove_opp_dev(opp_dev, opp_table);
 err: