Hi
> sound/soc/soc-core.c:643:2-7: WARNING: NULL check before freeing functions like kfree, debugfs_remove, debugfs_remove_recursive or usb_free_urb is not needed. Maybe consider reorganizing relevant code to avoid passing NULL values.
>
> NULL check before some freeing functions is not needed.
>
> Based on checkpatch warning
> "kfree(NULL) is safe this check is probably not required"
> and kfreeaddr.cocci by Julia Lawall.
>
> Generated by: scripts/coccinelle/free/ifnullfree.cocci
>
> Fixes: 7e74acb4fc31 ("ASoC: soc-core: remove rtd NULL check from soc_free_pcm_runtime()")
> CC: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>
> Signed-off-by: Fengguang Wu <fengguang.wu@xxxxxxxxx>
> ---
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>
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