1 files changed, 4 insertions, 4 deletions

diff --git a/classes/image_types_ota.bbclass b/classes/image_types_ota.bbclass
index 9eecd1b..ceea339 100644
--- a/classes/image_types_ota.bbclass
+++ b/classes/image_types_ota.bbclass
@@ -114,19 +114,19 @@ IMAGE_CMD_otaimg () {
                 # Calculate image type
                 OTA_ROOTFS_SIZE=$(calculate_size `du -ks $PHYS_SYSROOT | cut -f 1`  "${IMAGE_OVERHEAD_FACTOR}" "${IMAGE_ROOTFS_SIZE}" "${IMAGE_ROOTFS_MAXSIZE}" `expr ${IMAGE_ROOTFS_EXTRA_SPACE}` "${IMAGE_ROOTFS_ALIGNMENT}")
 
-                if [ $OTA_ROOTFS_SIZE -lt 0 ]; then
+                if [ ${OTA_ROOTFS_SIZE} -lt 0 ]; then
                         exit -1
                 fi
                 eval local COUNT=\"0\"
                 eval local MIN_COUNT=\"60\"
-                if [ $OTA_ROOTFS_SIZE -lt $MIN_COUNT ]; then
-                        eval COUNT=\"$MIN_COUNT\"
+                if [ ${OTA_ROOTFS_SIZE} -lt ${MIN_COUNT} ]; then
+                        eval COUNT=\"${MIN_COUNT}\"
                 fi
 
                 # create image
                 rm -rf ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.otaimg
                 sync
-                dd if=/dev/zero of=${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.otaimg seek=$OTA_ROOTFS_SIZE count=$COUNT bs=1024
+                dd if=/dev/zero of=${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.otaimg seek=${OTA_ROOTFS_SIZE} count=${COUNT} bs=1024
                 mkfs.ext4 -O ^64bit ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.otaimg -L otaroot -d ${PHYS_SYSROOT}
                 rm -rf ${PHYS_SYSROOT}