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Message-Id: <20160503000509.623048554@linuxfoundation.org>
Date: Mon, 2 May 2016 17:11:01 -0700
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org, Takashi Iwai <tiwai@...e.de>
Subject: [PATCH 4.4 033/163] ALSA: pcxhr: Fix missing mutex unlock
4.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Takashi Iwai <tiwai@...e.de>
commit 67f3754b51f22b18c4820fb84062f658c30e8644 upstream.
The commit [9bef72bdb26e: ALSA: pcxhr: Use nonatomic PCM ops]
converted to non-atomic PCM ops, but shamelessly with an unbalanced
mutex locking, which leads to the hangup easily. Fix it.
Fixes: 9bef72bdb26e ('ALSA: pcxhr: Use nonatomic PCM ops')
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=116441
Signed-off-by: Takashi Iwai <tiwai@...e.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
sound/pci/pcxhr/pcxhr_core.c | 1 +
1 file changed, 1 insertion(+)
--- a/sound/pci/pcxhr/pcxhr_core.c
+++ b/sound/pci/pcxhr/pcxhr_core.c
@@ -1341,5 +1341,6 @@ irqreturn_t pcxhr_threaded_irq(int irq,
}
pcxhr_msg_thread(mgr);
+ mutex_unlock(&mgr->lock);
return IRQ_HANDLED;
}
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