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Commit 145d92e7 authored by Dan Carpenter's avatar Dan Carpenter Committed by Takashi Iwai
Browse files

ALSA: core: check for underflow in snd_pcm_sw_params() 



As far as I can see, having an invalid ->tstamp_mode is harmless, but
adding a check silences a static checker warning.

Signed-off-by: default avatarDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent 13f3a46d

sound/core/pcm_native.c

+2 −1
Original line number Diff line number Diff line
@@ -650,7 +650,8 @@ static int snd_pcm_sw_params(struct snd_pcm_substream *substream, 
	}

	snd_pcm_stream_unlock_irq(substream);



	if (params->tstamp_mode > SNDRV_PCM_TSTAMP_LAST)

	if (params->tstamp_mode < 0 ||

	    params->tstamp_mode > SNDRV_PCM_TSTAMP_LAST)

		return -EINVAL;

	if (params->proto >= SNDRV_PROTOCOL_VERSION(2, 0, 12) &&

	    params->tstamp_type > SNDRV_PCM_TSTAMP_TYPE_LAST)