1 files changed, 7 insertions, 7 deletions

diff --git a/meta/classes/uboot-sign.bbclass b/meta/classes/uboot-sign.bbclass
index 2da43655aa..6385a06c13 100644
--- a/meta/classes/uboot-sign.bbclass
+++ b/meta/classes/uboot-sign.bbclass
@@ -46,12 +46,12 @@ UBOOT_NODTB_SYMLINK ?= "u-boot-nodtb-${MACHINE}.${UBOOT_SUFFIX}"
 UBOOT_PN = "${@d.getVar('PREFERRED_PROVIDER_u-boot') or 'u-boot'}"
 
 concat_dtb_helper() {
-        if [ -e ${UBOOT_DTB_BINARY} ]; then
+        if [ -e "${UBOOT_DTB_BINARY}" ]; then
                 ln -sf ${UBOOT_DTB_IMAGE} ${DEPLOYDIR}/${UBOOT_DTB_BINARY}
                 ln -sf ${UBOOT_DTB_IMAGE} ${DEPLOYDIR}/${UBOOT_DTB_SYMLINK}
         fi
 
-        if [ -f ${UBOOT_NODTB_BINARY} ]; then
+        if [ -f "${UBOOT_NODTB_BINARY}" ]; then
                 install ${UBOOT_NODTB_BINARY} ${DEPLOYDIR}/${UBOOT_NODTB_IMAGE}
                 ln -sf ${UBOOT_NODTB_IMAGE} ${UBOOT_NODTB_SYMLINK}
                 ln -sf ${UBOOT_NODTB_IMAGE} ${UBOOT_NODTB_BINARY}
@@ -67,13 +67,13 @@ concat_dtb_helper() {
         elif [ -e "${DEPLOYDIR}/${UBOOT_NODTB_IMAGE}" -a -e "$deployed_uboot_dtb_binary" ]; then
                 cd ${DEPLOYDIR}
                 cat ${UBOOT_NODTB_IMAGE} $deployed_uboot_dtb_binary | tee ${UBOOT_BINARY} > ${UBOOT_IMAGE}
-        elif [ -n "${UBOOT_DTB_BINARY}" ]; then
+        else
                 bbwarn "Failure while adding public key to u-boot binary. Verified boot won't be available."
         fi
 }
 
 concat_dtb() {
-        if [ "${UBOOT_SIGN_ENABLE}" = "1" -a "${PN}" = "${UBOOT_PN}" ]; then
+        if [ "${UBOOT_SIGN_ENABLE}" = "1" -a "${PN}" = "${UBOOT_PN}" -a -n "${UBOOT_DTB_BINARY}" ]; then
                 mkdir -p ${DEPLOYDIR}
                 if [ -n "${UBOOT_CONFIG}" ]; then
                         for config in ${UBOOT_MACHINE}; do
@@ -90,19 +90,19 @@ concat_dtb() {
 # Install UBOOT_DTB_BINARY to datadir, so that kernel can use it for
 # signing, and kernel will deploy UBOOT_DTB_BINARY after signs it.
 install_helper() {
-        if [ -f ${UBOOT_DTB_BINARY} ]; then
+        if [ -f "${UBOOT_DTB_BINARY}" ]; then
                 install -d ${D}${datadir}
                 # UBOOT_DTB_BINARY is a symlink to UBOOT_DTB_IMAGE, so we
                 # need both of them.
                 install ${UBOOT_DTB_BINARY} ${D}${datadir}/${UBOOT_DTB_IMAGE}
                 ln -sf ${UBOOT_DTB_IMAGE} ${D}${datadir}/${UBOOT_DTB_BINARY}
-        elif [ -n "${UBOOT_DTB_BINARY}" ]; then
+        else
                 bbwarn "${UBOOT_DTB_BINARY} not found"
         fi
 }
 
 do_install_append() {
-        if [ "${UBOOT_SIGN_ENABLE}" = "1" -a "${PN}" = "${UBOOT_PN}" ]; then
+        if [ "${UBOOT_SIGN_ENABLE}" = "1" -a "${PN}" = "${UBOOT_PN}" -a -n "${UBOOT_DTB_BINARY}" ]; then
                 if [ -n "${UBOOT_CONFIG}" ]; then
                         for config in ${UBOOT_MACHINE}; do
                                 cd ${B}/${config}