From 89f36c4ed5519559922ececc6f47865510d5358d Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Thu, 1 Dec 2011 00:07:16 +0100 Subject: [053/256] 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 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 2a58164..8e6a88e 100644 --- a/drivers/pci/access.c +++ b/drivers/pci/access.c @@ -463,7 +463,7 @@ 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);