Re: [PATCH v2 1/3] ALSA: hda: cs35l41: Correct error condition handling

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On 13/2/23 14:50, Stefan Binding wrote:
From: Vitaly Rodionov <vitalyr@xxxxxxxxxxxxxxxxxxxxx>

Function cs_dsp_coeff_write_ctrl() can return 3 possible values:
0 - no change, 1 - value has changed and -1 - error, so positive value
is not an error.
Fixes: 7406bdbc4fb8 ("ASoC: wm_adsp: Return whether changed when writing controls")

Signed-off-by: Vitaly Rodionov <vitalyr@xxxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Stefan Binding <sbinding@xxxxxxxxxxxxxxxxxxxxx>
---
  sound/pci/hda/hda_cs_dsp_ctl.c | 4 ++--
  1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/pci/hda/hda_cs_dsp_ctl.c b/sound/pci/hda/hda_cs_dsp_ctl.c
index 5433f6227ac9..463ca06036bf 100644
--- a/sound/pci/hda/hda_cs_dsp_ctl.c
+++ b/sound/pci/hda/hda_cs_dsp_ctl.c
@@ -218,10 +218,10 @@ int hda_cs_dsp_write_ctl(struct cs_dsp *dsp, const char *name, int type,
  	cs_ctl = cs_dsp_get_ctl(dsp, name, type, alg);
  	ret = cs_dsp_coeff_write_ctrl(cs_ctl, 0, buf, len);
  	mutex_unlock(&dsp->pwr_lock);
-	if (ret)
+	if (ret < 0)
  		return ret;
- if (cs_ctl->flags & WMFW_CTL_FLAG_SYS)
+	if (ret == 0 || (cs_ctl->flags & WMFW_CTL_FLAG_SYS))
  		return 0;
ctl = cs_ctl->priv;

Hi Takashi

Could you queue this patch as a bugfix for 6.2 please?
The cs_dsp patch to return 1 for changed has gone into 6.2
but we missed that this hda_cs_dsp code would break.



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