treewide: sysupgrade: use $UPGRADE_BACKUP to check for backup

[oweals/openwrt.git] / target / linux / ipq40xx / base-files / lib / upgrade / platform.sh

diff --git a/target/linux/ipq40xx/base-files/lib/upgrade/platform.sh b/target/linux/ipq40xx/base-files/lib/upgrade/platform.sh
index 6b9858beb0f43a6d13c2743f8340523cea43d4df..c12508c437a6dc966c88bee60857ede1e873b087 100644 (file)
--- a/target/linux/ipq40xx/base-files/lib/upgrade/platform.sh
+++ b/target/linux/ipq40xx/base-files/lib/upgrade/platform.sh
@@ -37,7 +37,7 @@ zyxel_do_upgrade() {
 
        tar Oxf $tar_file ${board_dir}/kernel | mtd write - kernel
 
-       if [ "$UPGRADE_OPT_SAVE_CONFIG" -eq 1 ]; then
+       if [ -n "$UPGRADE_BACKUP" ]; then
                tar Oxf $tar_file ${board_dir}/root | mtd -j "$UPGRADE_BACKUP" write - rootfs
        else
                tar Oxf $tar_file ${board_dir}/root | mtd write - rootfs