Return -1 if we try to set the frequency of a clock but couldn't find it.

diff --git a/sys/dev/ofw/ofw_clock.c b/sys/dev/ofw/ofw_clock.c
index ad81356..232cf49 100644 (file)
--- a/sys/dev/ofw/ofw_clock.c
+++ b/sys/dev/ofw/ofw_clock.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: ofw_clock.c,v 1.6 2016/08/23 21:30:18 kettenis Exp $  */
+/*     $OpenBSD: ofw_clock.c,v 1.7 2016/08/27 16:50:40 kettenis Exp $  */
 /*
  * Copyright (c) 2016 Mark Kettenis
  *
@@ -203,7 +203,7 @@ clock_set_frequency_idx(int node, int idx, uint32_t freq)
 
        len = OF_getproplen(node, "clocks");
        if (len <= 0)
-               return 0;
+               return -1;
 
        clocks = malloc(len, M_TEMP, M_WAITOK);
        OF_getpropintarray(node, "clocks", clocks, len);
@@ -229,7 +229,7 @@ clock_set_frequency(int node, const char *name, uint32_t freq)
 
        idx = clock_index(node, name);
        if (idx == -1)
-               return 0;
+               return -1;
 
        return clock_set_frequency_idx(node, idx, freq);
 }