Hi Yang,
On 2021-03-07 11:18 p.m., Yang Li wrote:
> In one of the error paths of the for_each_child_of_node() loop,
> add missing call to of_node_put().
>
> Fix the following coccicheck warning:
> ./sound/soc/bcm/cygnus-ssp.c:1346:1-33: WARNING: Function
> "for_each_available_child_of_node" should have of_node_put() before
> return around line 1352.
>
> Reported-by: Abaci Robot <abaci@xxxxxxxxxxxxxxxxx>
> Signed-off-by: Yang Li <yang.lee@xxxxxxxxxxxxxxxxx>
> ---
> sound/soc/bcm/cygnus-ssp.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/sound/soc/bcm/cygnus-ssp.c b/sound/soc/bcm/cygnus-ssp.c
> index 6e634b4..aa16a23 100644
> --- a/sound/soc/bcm/cygnus-ssp.c
> +++ b/sound/soc/bcm/cygnus-ssp.c
> @@ -1348,8 +1348,10 @@ static int cygnus_ssp_probe(struct platform_device *pdev)
> &cygnus_ssp_dai[active_port_count]);
>
> /* negative is err, 0 is active and good, 1 is disabled */
> - if (err < 0)
> + if (err < 0) {
> + of_node_put(child_node);
If such is needed in probe what about the other child_nodes in for_each_child_of_node loop that have already been parsed and succeeded. Do they need additional cleanup as well?
> return err;
> + }
> else if (!err) {
> dev_dbg(dev, "Activating DAI: %s\n",
> cygnus_ssp_dai[active_port_count].name);
>
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