event: Make strings const

The processing of events does not modify the event strings, so change the
strings in struct event to const (read-only).

Signed-off-by: Geoff Levand <geoff@infradead.org>

1 files changed, 3 insertions, 3 deletions

diff --git a/discover/event.h b/discover/event.h
index 91575cc..900ced8 100644
--- a/discover/event.h
+++ b/discover/event.h
@@ -16,11 +16,11 @@ enum event_action {
 struct event {
 	enum event_type type;
 	enum event_action action;
-	char *device;
+	const char *device;
 
 	struct param {
-		char *name;
-		char *value;
+		const char *name;
+		const char *value;
 	} *params;
 	int n_params;
 };