From 041f9d2468a31fb4fdca38e37aad91d7259bfc62 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Thu, 1 Dec 2011 00:07:16 +0100
Subject: [PATCH 049/414] pci: Use __wake_up_all_locked
 pci_unblock_user_cfg_access()

The waitqueue is protected by the pci_lock, so we can just avoid to
lock the waitqueue lock itself. That prevents the
might_sleep()/scheduling while atomic problem on RT

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable-rt@vger.kernel.org
---
 drivers/pci/access.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/access.c b/drivers/pci/access.c
index da26bc899d5f..e12dbf783dde 100644
--- a/drivers/pci/access.c
+++ b/drivers/pci/access.c
@@ -505,7 +505,7 @@ void pci_cfg_access_unlock(struct pci_dev *dev)
 	WARN_ON(!dev->block_cfg_access);
 
 	dev->block_cfg_access = 0;
-	wake_up_all(&pci_cfg_wait);
+	wake_up_all_locked(&pci_cfg_wait);
 	raw_spin_unlock_irqrestore(&pci_lock, flags);
 }
 EXPORT_SYMBOL_GPL(pci_cfg_access_unlock);
-- 
2.10.2

