Allocate SigmaDSP controls with kzalloc_flex() for the trailing cache data instead of open-coding the size calculation.
Annotate the cache array with its existing byte count so the allocation helper can initialize the counter. Assisted-by: Codex:GPT-5.5 Signed-off-by: Rosen Penev <[email protected]> --- sound/soc/codecs/sigmadsp.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/sound/soc/codecs/sigmadsp.c b/sound/soc/codecs/sigmadsp.c index 3343dbb63d2b..2e08fde3989c 100644 --- a/sound/soc/codecs/sigmadsp.c +++ b/sound/soc/codecs/sigmadsp.c @@ -35,7 +35,7 @@ struct sigmadsp_control { struct snd_kcontrol *kcontrol; bool is_readback; bool cached; - uint8_t cache[]; + u8 cache[] __counted_by(num_bytes); }; struct sigmadsp_data { @@ -223,7 +223,7 @@ static int sigma_fw_load_control(struct sigmadsp *sigmadsp, return -EINVAL; num_bytes = le16_to_cpu(ctrl_chunk->num_bytes); - ctrl = kzalloc(sizeof(*ctrl) + num_bytes, GFP_KERNEL); + ctrl = kzalloc_flex(*ctrl, cache, num_bytes); if (!ctrl) return -ENOMEM; -- 2.54.0
