rlm_csv: Fix comparison of unsigned expression

diff --git a/src/modules/rlm_csv/rlm_csv.c b/src/modules/rlm_csv/rlm_csv.c
index 560430a826344c4d7dabe1ca2a156fc3fce642c3..5bcac1143085c16ee37c4da48c104f3a69e8ae7e 100644 (file)
--- a/src/modules/rlm_csv/rlm_csv.c
+++ b/src/modules/rlm_csv/rlm_csv.c
@@ -806,7 +806,7 @@ static rlm_rcode_t CC_HINT(nonnull) mod_process(void *instance, UNUSED void *thr
 {
        rlm_csv_t *inst = instance;
        rlm_rcode_t rcode;
-       size_t slen;
+       ssize_t slen;
        fr_value_box_t *key;
 
        if (!inst->map || !inst->key) return RLM_MODULE_NOOP;