From a54988113985ca22e414e132054f234fc8a92604 Mon Sep 17 00:00:00 2001

From: Gen Zhang <blackgod016574@gmail.com>

Date: Wed, 29 May 2019 09:53:05 +0800

Subject: wcd9335: fix a incorrect use of kstrndup()

In wcd9335_codec_enable_dec(), 'widget_name' is allocated by kstrndup().

However, according to doc: "Note: Use kmemdup_nul() instead if the size

is known exactly." So we should use kmemdup_nul() here instead of

kstrndup().

Signed-off-by: Gen Zhang <blackgod016574@gmail.com>

Signed-off-by: Mark Brown <broonie@kernel.org>

---

 sound/soc/codecs/wcd9335.c | 2 +-

 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/codecs/wcd9335.c b/sound/soc/codecs/wcd9335.c

index a04a7cedd99d..85737fe54474 100644

--- a/sound/soc/codecs/wcd9335.c

+++ b/sound/soc/codecs/wcd9335.c

@@ -2734,7 +2734,7 @@ static int wcd9335_codec_enable_dec(struct snd_soc_dapm_widget *w,

 	char *dec;

 	u8 hpf_coff_freq;

-	widget_name = kstrndup(w->name, 15, GFP_KERNEL);

+	widget_name = kmemdup_nul(w->name, 15, GFP_KERNEL);

 	if (!widget_name)

 		return -ENOMEM;

-- 

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