• Charles Keepax's avatar
    ASoC: dapm: Fix NULL pointer deference on CODEC to CODEC DAIs · 249dc495
    Charles Keepax authored
    Commit a655de80 ("ASoC: core: Allow topology to override
    machine driver FE DAI link config.") caused soc_dai_hw_params to
    be come dependent on the substream private_data being set with
    a pointer to the snd_soc_pcm_runtime. Currently, CODEC to CODEC
    links don't set this, which causes a NULL pointer dereference:
    
    [<4069de54>] (soc_dai_hw_params) from
    [<40694b68>] (snd_soc_dai_link_event+0x1a0/0x380)
    
    Since the ASoC core in general assumes that the substream
    private_data will be set to a pointer to the snd_soc_pcm_runtime,
    update the CODEC to CODEC links to respect this.
    Signed-off-by: default avatarCharles Keepax <ckeepax@opensource.cirrus.com>
    Signed-off-by: default avatarMark Brown <broonie@kernel.org>
    249dc495
soc-dapm.h 31.2 KB