ALSA: usb-audio: fix invalid length check for RME and other UAC 2 devices

[cascardo/linux.git] / sound / usb / card.h

diff --git a/sound/usb/card.h b/sound/usb/card.h
index 814cb35..8a751b4 100644 (file)
--- a/sound/usb/card.h
+++ b/sound/usb/card.h
@@ -27,6 +27,7 @@ struct audioformat {
        unsigned int nr_rates;          /* number of rate table entries */
        unsigned int *rate_table;       /* rate table */
        unsigned char clock;            /* associated clock */
+       struct snd_pcm_chmap_elem *chmap; /* (optional) channel map */
 };
 
 struct snd_usb_substream;
@@ -109,6 +110,7 @@ struct snd_usb_substream {
        struct audioformat *cur_audiofmt;       /* current audioformat pointer (for hw_params callback) */
        snd_pcm_format_t pcm_format;    /* current audio format (for hw_params callback) */
        unsigned int channels;          /* current number of channels (for hw_params callback) */
+       unsigned int channels_max;      /* max channels in the all audiofmts */
        unsigned int cur_rate;          /* current rate (for hw_params callback) */
        unsigned int period_bytes;      /* current period bytes (for hw_params callback) */
        unsigned int altset_idx;     /* USB data format: index of alternate setting */