Re: [patch] drivers/dca: convert dca_lock to a raw spinlock V2

[Mike Galbraith <efault@gmx.de>]

On Wed, 2010-07-28 at 23:29 +0200, John Kacur wrote:

> Since the above looks slightly cleaner, maybe you just need to spin a
> clean-up patch
> of what is in tip/rt/2.6.33

Ok, dinky delta below.

drivers/dca: minor cleanup of dca-core.c

Signed-off-by: Mike Galbraith <efault@gmx.de>

--- a/drivers/dca/dca-core.c	2010-07-29 05:43:34.000000000 +0200
+++ b/drivers/dca/dca-core.c	2010-07-28 05:00:05.000000000 +0200
@@ -297,17 +297,19 @@ int register_dca_provider(struct dca_pro
 	int err;
 	unsigned long flags;
 	struct dca_domain *domain, *newdomain = NULL;
+        struct pci_bus *rc;
 
 	err = dca_sysfs_add_provider(dca, dev);
 	if (err)
 		return err;
 
 	raw_spin_lock_irqsave(&dca_lock, flags);
+	rc = dca_pci_rc_from_dev(dev);
 	domain = dca_get_domain(dev);
 	if (!domain) {
 		raw_spin_unlock_irqrestore(&dca_lock, flags);
 
-		newdomain = dca_allocate_domain(dca_pci_rc_from_dev(dev));
+		newdomain = dca_allocate_domain(rc);
 		if (!newdomain)
 			return -ENODEV;