linux-kernel - [PATCH 5.4 294/320] clk: si5341: Fix clock HW provider cleanup

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Message-Id: <20220124184003.947457916@linuxfoundation.org>
Date:   Mon, 24 Jan 2022 19:44:38 +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, Robert Hancock <robert.hancock@...ian.com>,
        Stephen Boyd <sboyd@...nel.org>
Subject: [PATCH 5.4 294/320] clk: si5341: Fix clock HW provider cleanup

From: Robert Hancock <robert.hancock@...ian.com>

commit 49a8f2bc8d88702783c7e163ec84374e9a022f71 upstream.

The call to of_clk_add_hw_provider was not undone on remove or on probe
failure, which could cause an oops on a subsequent attempt to retrieve
clocks for the removed device. Switch to the devm version of the
function to avoid this issue.

Fixes: 3044a860fd09 ("clk: Add Si5341/Si5340 driver")
Signed-off-by: Robert Hancock <robert.hancock@...ian.com>
Link: https://lore.kernel.org/r/20220112203816.1784610-1-robert.hancock@calian.com
Signed-off-by: Stephen Boyd <sboyd@...nel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/clk/clk-si5341.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/clk/clk-si5341.c
+++ b/drivers/clk/clk-si5341.c
@@ -1303,7 +1303,7 @@ static int si5341_probe(struct i2c_clien
 			clk_prepare(data->clk[i].hw.clk);
 	}
 
-	err = of_clk_add_hw_provider(client->dev.of_node, of_clk_si5341_get,
+	err = devm_of_clk_add_hw_provider(&client->dev, of_clk_si5341_get,
 			data);
 	if (err) {
 		dev_err(&client->dev, "unable to add clk provider\n");