linux-kernel - [PATCH 4.18 114/197] ASoC: rt5677: Fix initialization of rt5677_of

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Message-Id: <20180913131846.109883858@linuxfoundation.org>
Date:   Thu, 13 Sep 2018 15:31:03 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Matthias Kaehlcke <mka@...omium.org>,
        Guenter Roeck <groeck@...omium.org>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Mark Brown <broonie@...nel.org>,
        Sasha Levin <alexander.levin@...rosoft.com>
Subject: [PATCH 4.18 114/197] ASoC: rt5677: Fix initialization of rt5677_of_match.data

4.18-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Matthias Kaehlcke <mka@...omium.org>

[ Upstream commit f861e3e28a3016a2064d9f600eaa92a530b732b4 ]

The driver expects to find the device id in rt5677_of_match.data, however
it is currently assigned to rt5677_of_match.type. Fix this.

The problem was found with the help of clang:
  sound/soc/codecs/rt5677.c:5010:36: warning: expression which evaluates to
  zero treated as a null pointer constant of type 'const void *'
  [-Wnon-literal-null-conversion]
    { .compatible = "realtek,rt5677", RT5677 },
                                      ^~~~~~

Fixes: ddc9e69b9dc2 ("ASoC: rt5677: Hide platform data in the module sources")
Signed-off-by: Matthias Kaehlcke <mka@...omium.org>
Reviewed-by: Guenter Roeck <groeck@...omium.org>
Acked-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Signed-off-by: Mark Brown <broonie@...nel.org>
Signed-off-by: Sasha Levin <alexander.levin@...rosoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 sound/soc/codecs/rt5677.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/sound/soc/codecs/rt5677.c
+++ b/sound/soc/codecs/rt5677.c
@@ -5007,7 +5007,7 @@ static const struct regmap_config rt5677
 };
 
 static const struct of_device_id rt5677_of_match[] = {
-	{ .compatible = "realtek,rt5677", RT5677 },
+	{ .compatible = "realtek,rt5677", .data = (const void *)RT5677 },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, rt5677_of_match);