commit
6708913750344a900f2e73bfe4a4d6dbbce4fe8d upstream.
In the OSS emulation plugin builder where the frame size is parsed in
the plugin chain, some places miss the possible errors returned from
the plugin src_ or dst_frames callback.
This patch papers over such places.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
snd_pcm_sframes_t frames = size;
plugin = snd_pcm_plug_first(plug);
snd_pcm_sframes_t frames = size;
plugin = snd_pcm_plug_first(plug);
- while (plugin && frames > 0) {
+ while (plugin) {
+ if (frames <= 0)
+ return frames;
if ((next = plugin->next) != NULL) {
snd_pcm_sframes_t frames1 = frames;
if ((next = plugin->next) != NULL) {
snd_pcm_sframes_t frames1 = frames;
- if (plugin->dst_frames)
+ if (plugin->dst_frames) {
frames1 = plugin->dst_frames(plugin, frames);
frames1 = plugin->dst_frames(plugin, frames);
+ if (frames1 <= 0)
+ return frames1;
+ }
if ((err = next->client_channels(next, frames1, &dst_channels)) < 0) {
return err;
}
if (err != frames1) {
frames = err;
if ((err = next->client_channels(next, frames1, &dst_channels)) < 0) {
return err;
}
if (err != frames1) {
frames = err;
- if (plugin->src_frames)
+ if (plugin->src_frames) {
frames = plugin->src_frames(plugin, frames1);
frames = plugin->src_frames(plugin, frames1);
+ if (frames <= 0)
+ return frames;
+ }
}
} else
dst_channels = NULL;
}
} else
dst_channels = NULL;