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authorSrinivas Kandagatla <srinivas.kandagatla@linaro.org>2023-12-04 12:47:35 +0000
committerMark Brown <broonie@kernel.org>2023-12-04 16:20:25 +0000
commitfb9ad24485087e0f00d84bee7a5914640b2b9024 (patch)
tree8344bb750ff96c2de7412f5fa08f1cb0d7e78cf0
parente238b68e6dc89ddab52bd98216fe5623e94792b1 (diff)
ASoC: ops: add correct range check for limiting volume
Volume can have ranges that start with negative values, ex: -84dB to +40dB. Apply correct range check in snd_soc_limit_volume before setting the platform_max. Without this patch, for example setting a 0dB limit on a volume range of -84dB to +40dB would fail. Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Tested-by: Johan Hovold <johan+linaro@kernel.org> Reviewed-by: Johan Hovold <johan+linaro@kernel.org> Link: https://lore.kernel.org/r/20231204124736.132185-2-srinivas.kandagatla@linaro.org Signed-off-by: Mark Brown <broonie@kernel.org>
-rw-r--r--sound/soc/soc-ops.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/sound/soc/soc-ops.c b/sound/soc/soc-ops.c
index 55b009d3c681..2d25748ca706 100644
--- a/sound/soc/soc-ops.c
+++ b/sound/soc/soc-ops.c
@@ -661,7 +661,7 @@ int snd_soc_limit_volume(struct snd_soc_card *card,
kctl = snd_soc_card_get_kcontrol(card, name);
if (kctl) {
struct soc_mixer_control *mc = (struct soc_mixer_control *)kctl->private_value;
- if (max <= mc->max) {
+ if (max <= mc->max - mc->min) {
mc->platform_max = max;
ret = 0;
}