linux-kernel - [PATCH 4.18 091/145] ALSA: ac97: fix unbalanced pm_runtime

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Date:   Fri,  7 Sep 2018 23:09:17 +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, Lihua Yao <ylhuajnu@....com>,
        Robert Jarzmik <robert.jarzmik@...e.fr>,
        Takashi Iwai <tiwai@...e.de>
Subject: [PATCH 4.18 091/145] ALSA: ac97: fix unbalanced pm_runtime_enable

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

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

From: Lihua Yao <ylhuajnu@....com>

commit 250ea7c5f56e350cdafebe6b87478b00db4f7af8 upstream.

Runtime PM is enabled at ac97_bus_probe() and should be disabled
at ac97_bus_remove().

Fixes: 74426fbff66e ("ALSA: ac97: add an ac97 bus")
Signed-off-by: Lihua Yao <ylhuajnu@....com>
Acked-by: Robert Jarzmik <robert.jarzmik@...e.fr>
Cc: <stable@...r.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@...e.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 sound/ac97/bus.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/sound/ac97/bus.c
+++ b/sound/ac97/bus.c
@@ -511,6 +511,8 @@ static int ac97_bus_remove(struct device
 	if (ret == 0)
 		ac97_put_disable_clk(adev);
 
+	pm_runtime_disable(dev);
+
 	return ret;
 }