linux-kernel - [RFC PATCH v2 1/6] ALSA: compress: move codec parameter check to a function

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Date:   Tue, 21 Jul 2020 18:00:02 +0100
From:   Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
To:     broonie@...nel.org
Cc:     vkoul@...nel.org, perex@...ex.cz, tiwai@...e.com,
        lgirdwood@...il.com, alsa-devel@...a-project.org,
        linux-kernel@...r.kernel.org, ckeepax@...nsource.cirrus.com,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Subject: [RFC PATCH v2 1/6] ALSA: compress: move codec parameter check to a function

Move codec parameter checking to dedicated function so that other
callers do not duplicate it. This is in preparedness for adding
snd_compr_set_codec_params() support.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
---
 sound/core/compress_offload.c | 20 +++++++++++++-------
 1 file changed, 13 insertions(+), 7 deletions(-)

diff --git a/sound/core/compress_offload.c b/sound/core/compress_offload.c
index 0e53f6f31916..af5824113246 100644
--- a/sound/core/compress_offload.c
+++ b/sound/core/compress_offload.c
@@ -566,6 +566,18 @@ static int snd_compr_allocate_buffer(struct snd_compr_stream *stream,
 	return 0;
 }
 
+static int snd_compress_check_codec_params(struct snd_codec *codec)
+{
+	/* now codec parameters */
+	if (codec->id == 0 || codec->id > SND_AUDIOCODEC_MAX)
+		return -EINVAL;
+
+	if (codec->ch_in == 0 || codec->ch_out == 0)
+		return -EINVAL;
+
+	return 0;
+}
+
 static int snd_compress_check_input(struct snd_compr_params *params)
 {
 	/* first let's check the buffer parameter's */
@@ -574,14 +586,8 @@ static int snd_compress_check_input(struct snd_compr_params *params)
 	    params->buffer.fragments == 0)
 		return -EINVAL;
 
-	/* now codec parameters */
-	if (params->codec.id == 0 || params->codec.id > SND_AUDIOCODEC_MAX)
-		return -EINVAL;
+	return snd_compress_check_codec_params(&params->codec);
 
-	if (params->codec.ch_in == 0 || params->codec.ch_out == 0)
-		return -EINVAL;
-
-	return 0;
 }
 
 static int
-- 
2.21.0