Remove leading spaces from DT_SCHEMA_FILES

diff --git a/scripts/hvk-dt.sh b/scripts/hvk-dt.sh
index aae437f..98c3b80 100755 (executable)
--- a/scripts/hvk-dt.sh
+++ b/scripts/hvk-dt.sh
@@ -15,6 +15,11 @@ fi
 
 DT_CHECKER="${KMAKE} DT_CHECKER_FLAGS=-m dt_binding_check"
 
+# Remove leading whitespace to avoid the Makefile interpreting DT_SCHEMA_FILES
+# as empty like in this example:
+#     ${DT_CHECKER} DT_SCHEMA_FILES=     Documentation/devicetree/bindings...
+DT_SCHEMA_FILES=$(echo ${DT_SCHEMA_FILES} | xargs)
+
 if [ x"${DT_SCHEMA_FILES}" != x"" ]; then
     ${DT_CHECKER} DT_SCHEMA_FILES=${DT_SCHEMA_FILES}
 fi