monitor: fix clang warning - Declared variable-length array (VLA) has zero size

diff --git a/alsactl/monitor.c b/alsactl/monitor.c
index 536176d0e7cb49692315274900fefa48f7cd712f..29379ad061d056aa9c41905d57b866c736495c77 100644 (file)
--- a/alsactl/monitor.c
+++ b/alsactl/monitor.c
@@ -91,7 +91,7 @@ int monitor(const char *name)
        snd_ctl_t *ctls[MAX_CARDS];
        int ncards = 0;
        int show_cards;
-       int i, err;
+       int i, err = 0;
 
        if (!name) {
                int card = -1;
@@ -117,7 +117,7 @@ int monitor(const char *name)
                show_cards = 0;
        }
 
-       for (;;) {
+       for (;ncards > 0;) {
                struct pollfd fds[ncards];
 
                for (i = 0; i < ncards; i++)