debug.c: fix no-color-printing in case .color = NULL
diff --git a/src/debug.c b/src/debug.c
index 934f229..d10861f 100644
--- a/src/debug.c
+++ b/src/debug.c
@@ -115,7 +115,7 @@
return debug_info->cat[i].color;
}
- return "";
+ return NULL;
}
static void _output(struct debug_target *target, unsigned int subsys,
@@ -136,8 +136,11 @@
/* are we using color */
if (target->use_color) {
- snprintf(col, sizeof(col), "%s", color(subsys));
- col[sizeof(col)-1] = '\0';
+ const char *c = color(subsys);
+ if (c) {
+ snprintf(col, sizeof(col), "%s", color(subsys));
+ col[sizeof(col)-1] = '\0';
+ }
}
vsnprintf(buf, sizeof(buf), format, ap);
buf[sizeof(buf)-1] = '\0';