Commit 4bb38939 authored by Gerd Hoffmann's avatar Gerd Hoffmann
Browse files

wm8750: add record buffer underrun check 



Reported-by: default avatar <niuguoxiang@huawei.com>
Signed-off-by: default avatarGerd Hoffmann <kraxel@redhat.com>
Message-id: 20170901131409.6712-1-kraxel@redhat.com
parent f75637ba

hw/audio/wm8750.c

+5 −1
Original line number Diff line number Diff line
@@ -680,8 +680,12 @@ uint32_t wm8750_adc_dat(void *opaque) 
    WM8750State *s = (WM8750State *) opaque;

    uint32_t *data;



    if (s->idx_in >= sizeof(s->data_in))

    if (s->idx_in >= sizeof(s->data_in)) {

        wm8750_in_load(s);

        if (s->idx_in >= sizeof(s->data_in)) {

            return 0x80008000; /* silence in AUD_FMT_S16 sample format */

        }

    }



    data = (uint32_t *) &s->data_in[s->idx_in];

    s->req_in -= 4;