linux-kernel - [PATCH] ASoC: wm5110: Unregister compressed platform when driver is removed

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Date:	Thu, 21 Jan 2016 14:41:12 +0000
From:	Richard Fitzgerald <rf@...nsource.wolfsonmicro.com>
To:	<broonie@...nel.org>, <lgirdwood@...il.com>
CC:	<patches@...nsource.wolfsonmicro.com>,
	<alsa-devel@...a-project.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH] ASoC: wm5110: Unregister compressed platform when driver is removed

The driver was not unregistering the compressed platform in
wm5110_remove(). If the codec is built as a module, this would
lead to a NULL pointer deref if the module was unloaded and then
re-probed.

Signed-off-by: Richard Fitzgerald <rf@...nsource.wolfsonmicro.com>
---
 sound/soc/codecs/wm5110.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/soc/codecs/wm5110.c b/sound/soc/codecs/wm5110.c
index 6088d30..97c0f1e 100644
--- a/sound/soc/codecs/wm5110.c
+++ b/sound/soc/codecs/wm5110.c
@@ -2382,6 +2382,7 @@ error:
 
 static int wm5110_remove(struct platform_device *pdev)
 {
+	snd_soc_unregister_platform(&pdev->dev);
 	snd_soc_unregister_codec(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);
 
-- 
1.9.1