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authorMarc-André Lureau <marcandre.lureau@redhat.com>2023-09-12 10:13:01 +0400
committerMarc-André Lureau <marcandre.lureau@redhat.com>2023-09-12 11:14:09 +0400
commita92e7bb4cad57cc5c8817fb18fb25650507b69f8 (patch)
treefe679976e6c086661aa2142917a03085699d73b9
parent48a35e12faf90a896c5aa4755812201e00d60316 (diff)
ui: add precondition for dpy_get_ui_info()
Ensure that it only get called when dpy_ui_info_supported(). The function should always return a result. There should be a non-null console or active_console. Modify the argument to be const as well. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Albert Esteve <aesteve@redhat.com>
-rw-r--r--include/ui/console.h2
-rw-r--r--ui/console.c4
2 files changed, 4 insertions, 2 deletions
diff --git a/include/ui/console.h b/include/ui/console.h
index 79e4702912..28882f15a5 100644
--- a/include/ui/console.h
+++ b/include/ui/console.h
@@ -329,7 +329,7 @@ void update_displaychangelistener(DisplayChangeListener *dcl,
uint64_t interval);
void unregister_displaychangelistener(DisplayChangeListener *dcl);
-bool dpy_ui_info_supported(QemuConsole *con);
+bool dpy_ui_info_supported(const QemuConsole *con);
const QemuUIInfo *dpy_get_ui_info(const QemuConsole *con);
int dpy_set_ui_info(QemuConsole *con, QemuUIInfo *info, bool delay);
diff --git a/ui/console.c b/ui/console.c
index aa1e09462c..4a4f19ed33 100644
--- a/ui/console.c
+++ b/ui/console.c
@@ -801,7 +801,7 @@ static void dpy_set_ui_info_timer(void *opaque)
con->hw_ops->ui_info(con->hw, head, &con->ui_info);
}
-bool dpy_ui_info_supported(QemuConsole *con)
+bool dpy_ui_info_supported(const QemuConsole *con)
{
if (con == NULL) {
con = active_console;
@@ -815,6 +815,8 @@ bool dpy_ui_info_supported(QemuConsole *con)
const QemuUIInfo *dpy_get_ui_info(const QemuConsole *con)
{
+ assert(dpy_ui_info_supported(con));
+
if (con == NULL) {
con = active_console;
}