From: Arnd Bergmann arnd@arndb.de
gcc points out a memory area that is copied to a device but not initialized:
sound/soc/codecs/cros_ec_codec.c: In function 'i2s_rx_event': arch/x86/include/asm/string_32.h:83:20: error: '*((void *)&p+4)' may be used uninitialized in this function [-Werror=maybe-uninitialized] 83 | *((int *)to + 1) = *((int *)from + 1);
Change the length of the command to only pass down the part of the structure that has been initialized, as Tzung-Bi Shih explains that only that member is meant to be used.
Cc: Tzung-Bi Shih tzungbi@google.com Fixes: 727f1c71c780 ("ASoC: cros_ec_codec: refactor I2S RX") Signed-off-by: Arnd Bergmann arnd@arndb.de --- sound/soc/codecs/cros_ec_codec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/soc/codecs/cros_ec_codec.c b/sound/soc/codecs/cros_ec_codec.c index 58894bf47514..6ec673573c70 100644 --- a/sound/soc/codecs/cros_ec_codec.c +++ b/sound/soc/codecs/cros_ec_codec.c @@ -348,7 +348,7 @@ static int i2s_rx_event(struct snd_soc_dapm_widget *w, }
return send_ec_host_command(priv->ec_device, EC_CMD_EC_CODEC_I2S_RX, - (uint8_t *)&p, sizeof(p), NULL, 0); + &p.cmd, sizeof(p.cmd), NULL, 0); }
static struct snd_soc_dapm_widget i2s_rx_dapm_widgets[] = {