kbuild: small documentation fix in Documentation/kbuild/modules.txt

The Makefile fragment in Documentation/kbuild/modules.txt looks to be
missing some braces.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/Documentation/kbuild/modules.txt b/Documentation/kbuild/modules.txt
index 769ee05ee4d1..1d247d59ad56 100644
--- a/Documentation/kbuild/modules.txt
+++ b/Documentation/kbuild/modules.txt
@@ -249,7 +249,7 @@ following files:
                 --> filename: Makefile
                 KERNELDIR := /lib/modules/`uname -r`/build
                 all::
-                        $(MAKE) -C $KERNELDIR M=`pwd` $@
+                        $(MAKE) -C $(KERNELDIR) M=`pwd` $@
 
                 # Module specific targets
                 genbin: