5.15-stable review patch. If anyone has any objections, please let me know.
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From: Mark Brown broonie@kernel.org
[ Upstream commit 3150b70e944ead909260285dfb5707d0bedcf87b ]
When writing to an enum we need to verify that the value written is valid for the enumeration, the helper function snd_soc_item_enum_to_val() doesn't do it since it needs to return an unsigned (and in any case we'd need to check the return value).
Fixes: af2618a2eee8 ("ASoC: meson: g12a: add internal DAC glue driver") Signed-off-by: Mark Brown broonie@kernel.org Link: https://lore.kernel.org/r/20240103-meson-enum-val-v1-1-424af7a8fb91@kernel.o... Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- sound/soc/meson/g12a-toacodec.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/sound/soc/meson/g12a-toacodec.c b/sound/soc/meson/g12a-toacodec.c index 1dfee1396843c..10a2ff1ecf33e 100644 --- a/sound/soc/meson/g12a-toacodec.c +++ b/sound/soc/meson/g12a-toacodec.c @@ -71,6 +71,9 @@ static int g12a_toacodec_mux_put_enum(struct snd_kcontrol *kcontrol, struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; unsigned int mux, reg;
+ if (ucontrol->value.enumerated.item[0] >= e->items) + return -EINVAL; + mux = snd_soc_enum_item_to_val(e, ucontrol->value.enumerated.item[0]); regmap_field_read(priv->field_dat_sel, ®);