b43: rename b43_wldev's field with ssb_device to sdev

We free name "dev" for something generic (like dev abstraction layer).
Additionaly code is cleaner now, especially magic dev->dev-dev chains.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/b43/sysfs.c b/drivers/net/wireless/b43/sysfs.c
index f1ae4e0..57af619 100644
--- a/drivers/net/wireless/b43/sysfs.c
+++ b/drivers/net/wireless/b43/sysfs.c
@@ -140,7 +140,7 @@
 
 int b43_sysfs_register(struct b43_wldev *wldev)
 {
-	struct device *dev = wldev->dev->dev;
+	struct device *dev = wldev->sdev->dev;
 
 	B43_WARN_ON(b43_status(wldev) != B43_STAT_INITIALIZED);
 
@@ -149,7 +149,7 @@
 
 void b43_sysfs_unregister(struct b43_wldev *wldev)
 {
-	struct device *dev = wldev->dev->dev;
+	struct device *dev = wldev->sdev->dev;
 
 	device_remove_file(dev, &dev_attr_interference);
 }