diff options
Diffstat (limited to 'compress.c')
-rw-r--r-- | compress.c | 76 |
1 files changed, 37 insertions, 39 deletions
@@ -397,51 +397,49 @@ int compress_read(struct compress *compress, void *buf, unsigned int size) return oops(compress, ENODEV, "device not ready"); fds.events = POLLIN; - while (size) { - if (compress->ops->ioctl(compress->data, SNDRV_COMPRESS_AVAIL, &avail)) - return oops(compress, errno, "cannot get avail"); + if (compress->ops->ioctl(compress->data, SNDRV_COMPRESS_AVAIL, &avail)) + return oops(compress, errno, "cannot get avail"); - if ( (avail.avail < frag_size) && (avail.avail < size) ) { - /* Less than one fragment available and not at the - * end of the read, so poll - */ - if (compress->nonblocking) - return total; + if ( (avail.avail < frag_size) && (avail.avail < size) ) { + /* Less than one fragment available and not at the + * end of the read, so poll + */ + if (compress->nonblocking) + return total; - ret = compress->ops->poll(compress->data, &fds, 1, - compress->max_poll_wait_ms); - if (fds.revents & POLLERR) { - return oops(compress, EIO, "poll returned error!"); - } - /* A pause will cause -EBADFD or zero. - * This is not an error, just stop reading */ - if ((ret == 0) || (ret < 0 && errno == EBADFD)) - break; - if (ret < 0) - return oops(compress, errno, "poll error"); - if (fds.revents & POLLIN) { - continue; - } + ret = compress->ops->poll(compress->data, &fds, 1, + compress->max_poll_wait_ms); + if (fds.revents & POLLERR) { + return oops(compress, EIO, "poll returned error!"); } - /* read avail bytes */ - if (size > avail.avail) - to_read = avail.avail; - else - to_read = size; - num_read = compress->ops->read(compress->data, cbuf, to_read); - if (num_read < 0) { - /* If play was paused the read returns -EBADFD */ - if (errno == EBADFD) - break; - return oops(compress, errno, "read failed!"); + /* A pause will cause -EBADFD or zero. + * This is not an error, just stop reading */ + if ((ret == 0) || (ret < 0 && errno == EBADFD)) + return 0; + if (ret < 0) + return oops(compress, errno, "poll error"); + if (fds.revents & POLLIN) { + return 0; } - - size -= num_read; - cbuf += num_read; - total += num_read; + } + /* read avail bytes */ + if (size > avail.avail) + to_read = avail.avail; + else + to_read = size; + num_read = compress->ops->read(compress->data, cbuf, to_read); + if (num_read < 0) { + /* If play was paused the read returns -EBADFD */ + if (errno == EBADFD) + return 0; + return oops(compress, errno, "read failed!"); } - return total; + size -= num_read; + cbuf += num_read; + total += num_read; + + return num_read; } int compress_start(struct compress *compress) |