wmi: (!x & y) strikes again

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Carlos Corbacho <carlos@strangeworlds.co.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/acpi/wmi.c b/drivers/acpi/wmi.c
index 457ed3d..efacc9f 100644
--- a/drivers/acpi/wmi.c
+++ b/drivers/acpi/wmi.c
@@ -247,7 +247,7 @@
 	block = &wblock->gblock;
 	handle = wblock->handle;
 
-	if (!block->flags & ACPI_WMI_METHOD)
+	if (!(block->flags & ACPI_WMI_METHOD))
 		return AE_BAD_DATA;
 
 	if (block->instance_count < instance)