wireless: copy the vif section name instead of keeping a reference that might go...

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

diff --git a/wireless.c b/wireless.c
index 6675d6aad989c614b832db50525ee870d2f5628c..481a600e7d4e33a5cc26465bc5048c6e856e4e56 100644 (file)
--- a/wireless.c
+++ b/wireless.c
@@ -660,7 +660,7 @@ void wireless_interface_create(struct wireless_device *wdev, struct blob_attr *d
        struct wireless_interface *vif;
        struct blob_attr *tb[__VIF_ATTR_MAX];
        struct blob_attr *cur;
-       char *name_buf;
+       char *name_buf, *section_buf;
        char name[8];
 
        blobmsg_parse(vif_policy, __VIF_ATTR_MAX, tb, blob_data(data), blob_len(data));
@@ -671,11 +671,13 @@ void wireless_interface_create(struct wireless_device *wdev, struct blob_attr *d
 
        sprintf(name, "%d", wdev->vif_idx++);
 
-       vif = calloc_a(sizeof(*vif), &name_buf, strlen(name) + 1);
+       vif = calloc_a(sizeof(*vif),
+                      &name_buf, strlen(name) + 1,
+                      &section_buf, strlen(section) + 1);
        vif->name = strcpy(name_buf, name);
        vif->wdev = wdev;
        vif->config = data;
-       vif->section = section;
+       vif->section = strcpy(section_buf, section);
        vlist_add(&wdev->interfaces, &vif->node, vif->name);
 }