Commit 701ef320 authored by Xi Wang's avatar Xi Wang Committed by Takashi Iwai
Browse files

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: default avatarXi Wang <xi.wang@gmail.com>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent 9af4e7fe

sound/core/oss/pcm_plugin.c

+2 −1
Original line number Diff line number Diff line
@@ -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) {

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