On Mon, 10 Aug 2020 08:14:58 +0200,
Dinghao Liu wrote:
>
> When restore_dsp_rettings() fails, chip should be freed
> just like when init_hw() and request_irq() fails.
>
> Fixes: 47b5d028fdce8 ("ALSA: Echoaudio - Add suspend support #2")
> Signed-off-by: Dinghao Liu <dinghao.liu@xxxxxxxxxx>
Actually it's rather wrong to call snd_echo_free() in the resume error
path. This may lead to an Oops at the next time the system goes to
resume. That said, we should drop snd_echo_free() calls in other
error paths in snd_echo_resume() instead.
thanks,
Takashi
> ---
> sound/pci/echoaudio/echoaudio.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/sound/pci/echoaudio/echoaudio.c b/sound/pci/echoaudio/echoaudio.c
> index 6aeb99aa2414..2aa183fe5dc1 100644
> --- a/sound/pci/echoaudio/echoaudio.c
> +++ b/sound/pci/echoaudio/echoaudio.c
> @@ -2226,6 +2226,7 @@ static int snd_echo_resume(struct device *dev)
> chip->pipe_alloc_mask = pipe_alloc_mask;
> if (err < 0) {
> kfree(commpage_bak);
> + snd_echo_free(chip);
> return err;
> }
>
> --
> 2.17.1
>
