Re: [PATCH] Input: sparcspkr: Fix refcount leak in bbc_beep_probe
From: Miaoqian Lin <hidden>
Date: 2022-05-17 05:39:48
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Hi, Dmitry On 2022/5/17 6:08, Dmitry Torokhov wrote:
Hi On Mon, May 16, 2022 at 12:10:16PM +0400, Miaoqian Lin wrote:quoted
of_find_node_by_path() calls of_find_node_opts_by_path(), which returns a node pointer with refcount incremented, we should use of_node_put() on it when done. Add missing of_node_put() to avoid refcount leak. Fixes: 9c1a5077fdca ("input: Rewrite sparcspkr device probing.") Signed-off-by: Miaoqian Lin <redacted> ---Thank you for the patch.quoted
drivers/input/misc/sparcspkr.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-)diff --git a/drivers/input/misc/sparcspkr.c b/drivers/input/misc/sparcspkr.c index fe43e5557ed7..6a86900aa1fb 100644 --- a/drivers/input/misc/sparcspkr.c +++ b/drivers/input/misc/sparcspkr.c@@ -206,11 +206,11 @@ static int bbc_beep_probe(struct platform_device *op) info = &state->u.bbc; info->clock_freq = of_getintprop_default(dp, "clock-frequency", 0); if (!info->clock_freq) - goto out_free; + goto out_put; info->regs = of_ioremap(&op->resource[0], 0, 6, "bbc beep"); if (!info->regs) - goto out_free; + goto out_put; platform_set_drvdata(op, state);@@ -218,11 +218,14 @@ static int bbc_beep_probe(struct platform_device *op) if (err) goto out_clear_drvdata; + of_node_put(dp); +We do not really need to keep node pointer for that long, how about the version of your patch below?
Looks good to me.
Thanks.