77 lines
2.8 KiB
Diff
77 lines
2.8 KiB
Diff
From df2b08ecdb520cb5acc0df5d55df46902cd2cc39 Mon Sep 17 00:00:00 2001
|
|
From: Mike Galbraith <umgwanakikbuti@gmail.com>
|
|
Date: Wed, 18 Feb 2015 15:09:23 +0100
|
|
Subject: [PATCH 244/365] snd/pcm: fix snd_pcm_stream_lock*() irqs_disabled()
|
|
splats
|
|
|
|
Locking functions previously using read_lock_irq()/read_lock_irqsave() were
|
|
changed to local_irq_disable/save(), leading to gripes. Use nort variants.
|
|
|
|
|BUG: sleeping function called from invalid context at kernel/locking/rtmutex.c:915
|
|
|in_atomic(): 0, irqs_disabled(): 1, pid: 5947, name: alsa-sink-ALC88
|
|
|CPU: 5 PID: 5947 Comm: alsa-sink-ALC88 Not tainted 3.18.7-rt1 #9
|
|
|Hardware name: MEDION MS-7848/MS-7848, BIOS M7848W08.404 11/06/2014
|
|
| ffff880409316240 ffff88040866fa38 ffffffff815bdeb5 0000000000000002
|
|
| 0000000000000000 ffff88040866fa58 ffffffff81073c86 ffffffffa03b2640
|
|
| ffff88040239ec00 ffff88040866fa78 ffffffff815c3d34 ffffffffa03b2640
|
|
|Call Trace:
|
|
| [<ffffffff815bdeb5>] dump_stack+0x4f/0x9e
|
|
| [<ffffffff81073c86>] __might_sleep+0xe6/0x150
|
|
| [<ffffffff815c3d34>] __rt_spin_lock+0x24/0x50
|
|
| [<ffffffff815c4044>] rt_read_lock+0x34/0x40
|
|
| [<ffffffffa03a2979>] snd_pcm_stream_lock+0x29/0x70 [snd_pcm]
|
|
| [<ffffffffa03a355d>] snd_pcm_playback_poll+0x5d/0x120 [snd_pcm]
|
|
| [<ffffffff811937a2>] do_sys_poll+0x322/0x5b0
|
|
| [<ffffffff81193d48>] SyS_ppoll+0x1a8/0x1c0
|
|
| [<ffffffff815c4556>] system_call_fastpath+0x16/0x1b
|
|
|
|
Signed-off-by: Mike Galbraith <umgwanakikbuti@gmail.com>
|
|
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
|
---
|
|
sound/core/pcm_native.c | 8 ++++----
|
|
1 file changed, 4 insertions(+), 4 deletions(-)
|
|
|
|
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
|
|
index 21b7a1909c17..f3af5c5e375a 100644
|
|
--- a/sound/core/pcm_native.c
|
|
+++ b/sound/core/pcm_native.c
|
|
@@ -136,7 +136,7 @@ EXPORT_SYMBOL_GPL(snd_pcm_stream_unlock);
|
|
void snd_pcm_stream_lock_irq(struct snd_pcm_substream *substream)
|
|
{
|
|
if (!substream->pcm->nonatomic)
|
|
- local_irq_disable();
|
|
+ local_irq_disable_nort();
|
|
snd_pcm_stream_lock(substream);
|
|
}
|
|
EXPORT_SYMBOL_GPL(snd_pcm_stream_lock_irq);
|
|
@@ -151,7 +151,7 @@ void snd_pcm_stream_unlock_irq(struct snd_pcm_substream *substream)
|
|
{
|
|
snd_pcm_stream_unlock(substream);
|
|
if (!substream->pcm->nonatomic)
|
|
- local_irq_enable();
|
|
+ local_irq_enable_nort();
|
|
}
|
|
EXPORT_SYMBOL_GPL(snd_pcm_stream_unlock_irq);
|
|
|
|
@@ -159,7 +159,7 @@ unsigned long _snd_pcm_stream_lock_irqsave(struct snd_pcm_substream *substream)
|
|
{
|
|
unsigned long flags = 0;
|
|
if (!substream->pcm->nonatomic)
|
|
- local_irq_save(flags);
|
|
+ local_irq_save_nort(flags);
|
|
snd_pcm_stream_lock(substream);
|
|
return flags;
|
|
}
|
|
@@ -177,7 +177,7 @@ void snd_pcm_stream_unlock_irqrestore(struct snd_pcm_substream *substream,
|
|
{
|
|
snd_pcm_stream_unlock(substream);
|
|
if (!substream->pcm->nonatomic)
|
|
- local_irq_restore(flags);
|
|
+ local_irq_restore_nort(flags);
|
|
}
|
|
EXPORT_SYMBOL_GPL(snd_pcm_stream_unlock_irqrestore);
|
|
|
|
--
|
|
2.28.0
|
|
|