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path: root/sound/core/compress_offload.c
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Diffstat (limited to 'sound/core/compress_offload.c')
-rw-r--r--sound/core/compress_offload.c26
1 files changed, 26 insertions, 0 deletions
diff --git a/sound/core/compress_offload.c b/sound/core/compress_offload.c
index eb60cb8dbb8a..c40ae573346d 100644
--- a/sound/core/compress_offload.c
+++ b/sound/core/compress_offload.c
@@ -425,6 +425,26 @@ static int snd_compr_allocate_buffer(struct snd_compr_stream *stream,
return 0;
}
+static int snd_compress_check_input(struct snd_compr_params *params)
+{
+ /* first let's check the buffer parameter's */
+ if (params->buffer.fragment_size == 0 ||
+ params->buffer.fragments > SIZE_MAX / params->buffer.fragment_size)
+ return -EINVAL;
+
+ /* now codec parameters */
+ if (params->codec.id == 0 || params->codec.id > SND_AUDIOCODEC_MAX)
+ return -EINVAL;
+
+ if (params->codec.ch_in == 0 || params->codec.ch_out == 0)
+ return -EINVAL;
+
+ if (!(params->codec.sample_rate & SNDRV_PCM_RATE_8000_192000))
+ return -EINVAL;
+
+ return 0;
+}
+
static int
snd_compr_set_params(struct snd_compr_stream *stream, unsigned long arg)
{
@@ -443,11 +463,17 @@ snd_compr_set_params(struct snd_compr_stream *stream, unsigned long arg)
retval = -EFAULT;
goto out;
}
+
+ retval = snd_compress_check_input(params);
+ if (retval)
+ goto out;
+
retval = snd_compr_allocate_buffer(stream, params);
if (retval) {
retval = -ENOMEM;
goto out;
}
+
retval = stream->ops->set_params(stream, params);
if (retval)
goto out;