Android audio_hw_primary

I have a custom android device which has root android OS installed in it. Earlier the "sound" and "mic" was working properly. But now none of the above hardwares are working and whenever I play any video I am getting the following exceptions in the log:

02-17 21:10:37.564: E/audio_hw_primary(2378): cannot open pcm_out driver 0: cannot open device '/dev/snd/pcmC4294967295D0p': No such file or directory
02-17 21:10:37.574: W/audio_hw_primary(2378): card -1, port 0 device 0x2
02-17 21:10:37.574: W/audio_hw_primary(2378): rate 44100, channel 2 period_size 0xc0

Can anyone help me to solve this issue.

Thanks