hdmitx: clean up deadcode

PD#151236: driver defect clean up:
#252
#270~283

Change-Id: I009c06dcb14bd3fb686c46a155418093bc7f7514
Signed-off-by: Yi Zhou <yi.zhou@amlogic.com>

diff --git a/drivers/amlogic/media/vout/hdmitx/hdmi_tx_20/hdmi_tx_audio.c b/drivers/amlogic/media/vout/hdmitx/hdmi_tx_20/hdmi_tx_audio.c
index a9c5a15..1358ef3 100644 (file)
--- a/drivers/amlogic/media/vout/hdmitx/hdmi_tx_20/hdmi_tx_audio.c
+++ b/drivers/amlogic/media/vout/hdmitx/hdmi_tx_20/hdmi_tx_audio.c
@@ -210,8 +210,10 @@ static void hdmi_tx_construct_aud_packet(
        } else {
                ;
        }
-       AUD_DB[0] = AUD_DB[0] & 0xf;/*bit[7:4] always set to 0 in HDMI*/
-       AUD_DB[1] = 0;          /*always set to 0 in HDMI*/
+       if (AUD_DB) {
+               AUD_DB[0] = AUD_DB[0] & 0xf;/*bit[7:4] always set to 0 in HDMI*/
+               AUD_DB[1] = 0;          /*always set to 0 in HDMI*/
+       }
 #endif
 }