diff options
| -rw-r--r-- | src/pcm.c | 11 |
1 files changed, 8 insertions, 3 deletions
@@ -289,8 +289,10 @@ snd_pcm_poll_descriptors_count(snd_pcm_t *pcm) int snd_pcm_poll_descriptors(snd_pcm_t *pcm, struct pollfd *pfds, unsigned int space) { - if (space > (unsigned int)sio_nfds(pcm->hdl)) + if (space < (unsigned int)sio_nfds(pcm->hdl)) { + WARNX("not enough space: %u < %d", space, sio_nfds(pcm->hdl)); return -1; + } return sio_pollfd(pcm->hdl, pfds, (pcm->hw.stream == SND_PCM_STREAM_PLAYBACK ? POLLOUT : POLLIN)); } @@ -298,10 +300,13 @@ snd_pcm_poll_descriptors(snd_pcm_t *pcm, struct pollfd *pfds, unsigned int space int snd_pcm_poll_descriptors_revents(snd_pcm_t *pcm, struct pollfd *pfds, unsigned int nfds, unsigned short *revents) { - if (!revents || nfds > (unsigned int)sio_nfds(pcm->hdl)) + if (nfds < (unsigned int)sio_nfds(pcm->hdl)) { + WARNX("not enough space: %u < %d", nfds, sio_nfds(pcm->hdl)); return -1; + } - *revents = sio_revents(pcm->hdl, pfds); + const int ret = sio_revents(pcm->hdl, pfds); + if (revents) *revents = ret; return 0; } |