[openwrt/openwrt] unetd: fix interface teardown

[LEDE Commits]

nbd pushed a commit to openwrt/openwrt.git, branch openwrt-24.10:
https://git.openwrt.org/a1ee311f59d5bd0838444afed7984d5757c5222b

commit a1ee311f59d5bd0838444afed7984d5757c5222b
Author: Felix Fietkau <nbd at nbd.name>
AuthorDate: Sun Jan 26 21:10:53 2025 +0100

    unetd: fix interface teardown
    
    Pass the correct device name in the network_del ubus call
    
    Signed-off-by: Felix Fietkau <nbd at nbd.name>
    (cherry picked from commit 80ba0d958dc96fb7aba26614f71325507fabd58a)
---
 package/network/services/unetd/files/unetd.sh | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/package/network/services/unetd/files/unetd.sh b/package/network/services/unetd/files/unetd.sh
index 2f0f0c478c..2117eab391 100644
--- a/package/network/services/unetd/files/unetd.sh
+++ b/package/network/services/unetd/files/unetd.sh
@@ -82,11 +82,10 @@ proto_unet_setup() {
 
 proto_unet_teardown() {
 	local config="$1"
-	local iface="$2"
 
 	local device
 	json_get_vars device
-	device="${device:-$iface}"
+	device="${device:-$config}"
 
 	json_init
 	json_add_string name "$device"