lsfd: make sure errors array is not empty [-Werror=type-limits]

lsfd-cmd/error.c: In function ‘get_errno_name’:
lsfd-cmd/error.c:49:30: error: comparison of unsigned expression in ‘< 0’ is always false [-Werror=type-limits]
   49 |         for (size_t i = 0; i < ARRAY_SIZE(errnos); i ++) {
      |                              ^

Signed-off-by: Karel Zak <kzak@redhat.com>

diff --git a/lsfd-cmd/error.c b/lsfd-cmd/error.c
index ca3752c3e52fa7c554f87f0dc5d890176b586fe3..7e7bc191c13d29321f1d2884c0f1e6552495df3a 100644 (file)
--- a/lsfd-cmd/error.c
+++ b/lsfd-cmd/error.c
@@ -46,6 +46,9 @@ static const struct errno_s errnos[] = {
 
 static const char *get_errno_name(int ern)
 {
+       if (!ARRAY_SIZE(errnos))
+               return NULL;
+
        for (size_t i = 0; i < ARRAY_SIZE(errnos); i ++) {
                if (errnos[i].number == ern)
                        return errnos[i].name;