In the pruss_clk_mux_setup(), the devm_add_action_or_reset() indirectly calls pruss_of_free_clk_provider(), which calls of_node_put(clk_mux_np) on the error path. However, after the devm_add_action_or_reset() returns, the of_node_put(clk_mux_np) is called again, causing a double free.
Fix by returning directly, to avoid the duplicate of_node_put().
Fixes: ba59c9b43c86 ("soc: ti: pruss: support CORECLK_MUX and IEPCLK_MUX") Cc: stable@vger.kernel.org Signed-off-by: Wentao Liang vulab@iscas.ac.cn
--- Changes in v2: - Drop error jumping lable. --- drivers/soc/ti/pruss.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/soc/ti/pruss.c b/drivers/soc/ti/pruss.c index d7634bf5413a..07d5134b503b 100644 --- a/drivers/soc/ti/pruss.c +++ b/drivers/soc/ti/pruss.c @@ -368,10 +368,9 @@ static int pruss_clk_mux_setup(struct pruss *pruss, struct clk *clk_mux, clk_mux_np); if (ret) { dev_err(dev, "failed to add clkmux free action %d", ret); - goto put_clk_mux_np; }
- return 0; + return ret;
put_clk_mux_np: of_node_put(clk_mux_np);
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+++ b/drivers/soc/ti/pruss.c @@ -368,10 +368,9 @@ static int pruss_clk_mux_setup(struct pruss *pruss, struct clk *clk_mux, clk_mux_np); if (ret) { dev_err(dev, "failed to add clkmux free action %d", ret);
}goto put_clk_mux_np;
You may omit curly brackets here. https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Docu...
- return 0;
- return ret;
…
Regards, Markus
On 17:40-20260109, Markus Elfring wrote:
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+++ b/drivers/soc/ti/pruss.c @@ -368,10 +368,9 @@ static int pruss_clk_mux_setup(struct pruss *pruss, struct clk *clk_mux, clk_mux_np); if (ret) { dev_err(dev, "failed to add clkmux free action %d", ret);
}goto put_clk_mux_np;You may omit curly brackets here. https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Docu...
agree.
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