linux-kernel - [PATCH] ASoC: da7213: Fix incorrect usage of bitwise '&' operator for SRM check

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Date:   Wed, 3 May 2017 16:15:53 +0100
From:   Adam Thomson <Adam.Thomson.Opensource@...semi.com>
To:     Mark Brown <broonie@...nel.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>
CC:     Support Opensource <support.opensource@...semi.com>,
        <alsa-devel@...a-project.org>, <linux-kernel@...r.kernel.org>,
        Takashi Sakamoto <o-takashi@...amocchi.jp>
Subject: [PATCH] ASoC: da7213: Fix incorrect usage of bitwise '&' operator for
 SRM check

In the SRM lock check section of code the '&' bitwise operator is
used as part of checking lock status. Functionally the code works
as intended, but the conditional statement is a boolean comparison
so should really use '&&' logical operator instead. This commit
rectifies this discrepancy.

Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@...semi.com>
---
 sound/soc/codecs/da7213.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/codecs/da7213.c b/sound/soc/codecs/da7213.c
index 12da558..d114f33 100644
--- a/sound/soc/codecs/da7213.c
+++ b/sound/soc/codecs/da7213.c
@@ -771,7 +771,7 @@ static int da7213_dai_event(struct snd_soc_dapm_widget *w,
 				++i;
 				msleep(50);
 			}
-		} while ((i < DA7213_SRM_CHECK_RETRIES) & (!srm_lock));
+		} while ((i < DA7213_SRM_CHECK_RETRIES) && (!srm_lock));
 
 		if (!srm_lock)
 			dev_warn(codec->dev, "SRM failed to lock\n");
-- 
1.9.1