[PATCH] ASoC: ops: Log unknown controls in snd_soc_limit_volume()

From: Mark Brown

Date: Tue Apr 21 2026 - 16:03:32 EST


When we fail to look up the control name in snd_soc_limit_volume() we don't
log anything, the error code isn't particularly descriptive and checking
the return value of the function at all is a bit erratic among the callers.
Since there is no reason why anyone should ever be attempting to limit the
volume of a nonexistant control add a log message in the core to improve
usability.

Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
---
sound/soc/soc-ops.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/sound/soc/soc-ops.c b/sound/soc/soc-ops.c
index f966d4e13c7f..94e28fc780a5 100644
--- a/sound/soc/soc-ops.c
+++ b/sound/soc/soc-ops.c
@@ -503,6 +503,9 @@ int snd_soc_limit_volume(struct snd_soc_card *card, const char *name, int max)
mc->platform_max = max;
ret = snd_soc_clip_to_platform_max(kctl);
}
+ } else {
+ dev_warn(card->dev, "Volume limit for unknown control '%s'\n",
+ name);
}

return ret;

---
base-commit: 028ef9c96e96197026887c0f092424679298aae8
change-id: 20260421-asoc-limit-volume-error-ca28188dc7c9

Best regards,
--
Mark Brown <broonie@xxxxxxxxxx>