linux-kernel - [PATCH] echoaudio: remove redundant initialization of pointer 'pipe'

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Message-Id: <20180312150100.8089-1-colin.king@canonical.com>
Date:   Mon, 12 Mar 2018 15:01:00 +0000
From:   Colin King <colin.king@...onical.com>
To:     Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>,
        Takashi Sakamoto <o-takashi@...amocchi.jp>,
        Arvind Yadav <arvind.yadav.cs@...il.com>,
        alsa-devel@...a-project.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] echoaudio: remove redundant initialization of pointer 'pipe'

From: Colin Ian King <colin.king@...onical.com>

The pointer 'pipe' is being initialized with a value that is never
read and it is re-assigned later, hence the initialization is redundant
and can be removed. Also remove pointer 'runtime' as it is no longer
required.

Cleans up clang warning:
sound/pci/echoaudio/echoaudio.c:740:20: warning: Value stored to 'pipe'
during its initialization is never read

Signed-off-by: Colin Ian King <colin.king@...onical.com>
---
 sound/pci/echoaudio/echoaudio.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/sound/pci/echoaudio/echoaudio.c b/sound/pci/echoaudio/echoaudio.c
index d68f99e076a8..0935a5c8741f 100644
--- a/sound/pci/echoaudio/echoaudio.c
+++ b/sound/pci/echoaudio/echoaudio.c
@@ -736,8 +736,7 @@ static int pcm_prepare(struct snd_pcm_substream *substream)
 static int pcm_trigger(struct snd_pcm_substream *substream, int cmd)
 {
 	struct echoaudio *chip = snd_pcm_substream_chip(substream);
-	struct snd_pcm_runtime *runtime = substream->runtime;
-	struct audiopipe *pipe = runtime->private_data;
+	struct audiopipe *pipe;
 	int i, err;
 	u32 channelmask = 0;
 	struct snd_pcm_substream *s;
-- 
2.15.1