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-rw-r--r--hotplug-rule.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/hotplug-rule.c b/hotplug-rule.c
index 7508b1d..7e9c16a 100644
--- a/hotplug-rule.c
+++ b/hotplug-rule.c
@@ -306,7 +306,8 @@ static int rule_process_expr(struct blob_attr *cur, struct blob_attr *msg)
bool found;
int ret;
- if (blobmsg_type(cur) != BLOBMSG_TYPE_ARRAY) {
+ if (blobmsg_type(cur) != BLOBMSG_TYPE_ARRAY ||
+ blobmsg_type(blobmsg_data(cur)) != BLOBMSG_TYPE_STRING) {
rule_error(cur, "Unexpected element type");
return -1;
}