ALSA: core: fix NULL checking in snd_pcm_plug_slave_size()
The dereference snd_pcm_plug_stream(plug) should come after the NULL check snd_BUG_ON(!plug). Signed-off-by: Xi Wang <xi.wang@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
parent
9af4e7feda
commit
701ef3205e
|
@ -231,13 +231,14 @@ snd_pcm_sframes_t snd_pcm_plug_slave_size(struct snd_pcm_substream *plug, snd_pc
|
|||
{
|
||||
struct snd_pcm_plugin *plugin, *plugin_prev, *plugin_next;
|
||||
snd_pcm_sframes_t frames;
|
||||
int stream = snd_pcm_plug_stream(plug);
|
||||
int stream;
|
||||
|
||||
if (snd_BUG_ON(!plug))
|
||||
return -ENXIO;
|
||||
if (clt_frames == 0)
|
||||
return 0;
|
||||
frames = clt_frames;
|
||||
stream = snd_pcm_plug_stream(plug);
|
||||
if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
|
||||
plugin = snd_pcm_plug_first(plug);
|
||||
while (plugin && frames > 0) {
|
||||
|
|
Loading…
Reference in a new issue