--- /dev/null
+From cdc87c5a30f407ed1ce43d8a22261116873d5ef1 Mon Sep 17 00:00:00 2001
+From: Alan Cox <alan@lxorguk.ukuu.org.uk>
+Date: Fri, 7 Dec 2012 23:11:14 +0100
+Subject: pnpacpi: fix incorrect TEST_ALPHA() test
+
+From: Alan Cox <alan@lxorguk.ukuu.org.uk>
+
+commit cdc87c5a30f407ed1ce43d8a22261116873d5ef1 upstream.
+
+TEST_ALPHA() is broken and always returns 0.
+
+[akpm@linux-foundation.org: return false for '@' as well, per Bjorn]
+Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
+Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
+Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ drivers/pnp/pnpacpi/core.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/pnp/pnpacpi/core.c
++++ b/drivers/pnp/pnpacpi/core.c
+@@ -57,7 +57,7 @@ static inline int __init is_exclusive_de
+ if (!(('0' <= (c) && (c) <= '9') || ('A' <= (c) && (c) <= 'F'))) \
+ return 0
+ #define TEST_ALPHA(c) \
+- if (!('@' <= (c) || (c) <= 'Z')) \
++ if (!('A' <= (c) && (c) <= 'Z')) \
+ return 0
+ static int __init ispnpidacpi(const char *id)
+ {