From: Andrew Morton <akpm@linux-foundation.org>

arch/powerpc/kernel/vio.c: In function `vio_hotplug':
arch/powerpc/kernel/vio.c:376: error: `length' undeclared (first use in this function)
arch/powerpc/kernel/vio.c:376: error: (Each undeclared identifier is reported only once
arch/powerpc/kernel/vio.c:376: error: for each function it appears in.)

Is this right?

Cc: Kay Sievers <kay.sievers@vrfy.org>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 arch/powerpc/kernel/vio.c |    2 +-
 1 files changed, 1 insertion(+), 1 deletion(-)

diff -puN arch/powerpc/kernel/vio.c~fix-4-gregkh-driver-driver-core-change-add_uevent_var-to-use-a-struct arch/powerpc/kernel/vio.c
--- a/arch/powerpc/kernel/vio.c~fix-4-gregkh-driver-driver-core-change-add_uevent_var-to-use-a-struct
+++ a/arch/powerpc/kernel/vio.c
@@ -373,7 +373,7 @@ static int vio_hotplug(struct device *de
 	dn = dev->archdata.of_node;
 	if (!dn)
 		return -ENODEV;
-	cp = of_get_property(dn, "compatible", &length);
+	cp = of_get_property(dn, "compatible", &env->buflen);
 	if (!cp)
 		return -ENODEV;
 
_