functions: fix unbound variable

5 years ago · d542e8e4a0
parent a6a7be7c18
commit d542e8e4a0
1 changed files with 1 additions and 1 deletions
--- a/live-build/functions
+++ b/live-build/functions
@ -640,7 +640,7 @@ snap_preseed() {
    # Seed from the specified channel (e.g. core18 latest/stable)
    # Or Channel endcoded in the snap name (e.g. lxd=4.0/stable/ubuntu-20.04)
    # Or Ubuntu policy default channel latest/stable/ubuntu-$(release_ver)
-    local CHANNEL=$3
+    local CHANNEL=${3:-}
    if [ -z "$CHANNEL" ]; then
        case $2 in
            *=*)