From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Sun, 7 Mar 2010 10:20:41 +0000 (+0100)
Subject: compat: backport device_{lock,trylock,unlock}
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=ce1ce992988ba3ec6df8014a87b166134fdbafb0;p=openwrt%2Fstaging%2Fblogic.git

compat: backport device_{lock,trylock,unlock}

This fixes build of ar9170.

CC: Gus Wirth <gwirth79@gmail.com>
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
---

diff --git a/include/linux/compat-2.6.34.h b/include/linux/compat-2.6.34.h
index b5d190398c95..d189bee7d0c5 100644
--- a/include/linux/compat-2.6.34.h
+++ b/include/linux/compat-2.6.34.h
@@ -139,6 +139,22 @@ do {								\
 #endif
 /* source: include/linux/netdevice.h */
 
+
+static inline void device_lock(struct device *dev)
+{
+	down(&dev->sem);
+}
+
+static inline int device_trylock(struct device *dev)
+{
+	return down_trylock(&dev->sem);
+}
+
+static inline void device_unlock(struct device *dev)
+{
+	up(&dev->sem);
+}
+
 #endif /* (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,34)) */
 
 #endif /* LINUX_26_34_COMPAT_H */