From mboxrd@z Thu Jan 1 00:00:00 1970 From: SF Markus Elfring Subject: [PATCH v2 1/2] ALSA: compress: Restructure source code around an if statement in snd_compr_set_params() Date: Mon, 22 Aug 2016 10:38:25 +0200 Message-ID: <89765506-60f0-8319-5806-29476a36f9f3@users.sourceforge.net> References: <566ABCD9.1060404@users.sourceforge.net> <7233eb00-a941-4935-dce2-7cb907272d41@users.sourceforge.net> <03eac1fe-ff33-1759-9c2a-7914f1c6de45@users.sourceforge.net> <1471809094.3746.17.camel@perches.com> <14b1efe1-3c1c-4c36-bfc2-19947c190412@users.sourceforge.net> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <14b1efe1-3c1c-4c36-bfc2-19947c190412@users.sourceforge.net> Sender: linux-kernel-owner@vger.kernel.org To: alsa-devel@alsa-project.org, Jaroslav Kysela , Joe Perches , Takashi Iwai , Vinod Koul Cc: LKML , kernel-janitors@vger.kernel.org, Julia Lawall List-Id: alsa-devel@alsa-project.org From: Markus Elfring Date: Mon, 22 Aug 2016 10:01:52 +0200 * Reverse a condition check. * Reduce the indentation one level then for some source code from a previous if branch. Suggested-by: Joe Perches Signed-off-by: Markus Elfring --- sound/core/compress_offload.c | 62 +++++++++++++++++++++---------------------- 1 file changed, 30 insertions(+), 32 deletions(-) diff --git a/sound/core/compress_offload.c b/sound/core/compress_offload.c index 2c49848..a10d139 100644 --- a/sound/core/compress_offload.c +++ b/sound/core/compress_offload.c @@ -548,43 +548,41 @@ snd_compr_set_params(struct snd_compr_stream *stream, unsigned long arg) struct snd_compr_params *params; int retval; - if (stream->runtime->state == SNDRV_PCM_STATE_OPEN) { - /* - * we should allow parameter change only when stream has been - * opened not in other cases - */ - params = kmalloc(sizeof(*params), GFP_KERNEL); - if (!params) - return -ENOMEM; - if (copy_from_user(params, (void __user *)arg, sizeof(*params))) { - retval = -EFAULT; - goto out; - } + if (stream->runtime->state != SNDRV_PCM_STATE_OPEN) + return -EPERM; + /* + * we should allow parameter change only when stream has been + * opened not in other cases + */ + params = kmalloc(sizeof(*params), GFP_KERNEL); + if (!params) + return -ENOMEM; + if (copy_from_user(params, (void __user *)arg, sizeof(*params))) { + retval = -EFAULT; + goto out; + } - retval = snd_compress_check_input(params); - if (retval) - 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 = snd_compr_allocate_buffer(stream, params); + if (retval) { + retval = -ENOMEM; + goto out; + } - retval = stream->ops->set_params(stream, params); - if (retval) - goto out; + retval = stream->ops->set_params(stream, params); + if (retval) + goto out; - stream->metadata_set = false; - stream->next_track = false; + stream->metadata_set = false; + stream->next_track = false; - if (stream->direction == SND_COMPRESS_PLAYBACK) - stream->runtime->state = SNDRV_PCM_STATE_SETUP; - else - stream->runtime->state = SNDRV_PCM_STATE_PREPARED; - } else { - return -EPERM; - } + if (stream->direction == SND_COMPRESS_PLAYBACK) + stream->runtime->state = SNDRV_PCM_STATE_SETUP; + else + stream->runtime->state = SNDRV_PCM_STATE_PREPARED; out: kfree(params); return retval; -- 2.9.3