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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>
This commit is contained in:
Marc-André Lureau 2023-09-12 10:13:01 +04:00
parent 48a35e12fa
commit a92e7bb4ca
2 changed files with 4 additions and 2 deletions
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2
include/ui/console.h
View File

@ -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);

4
ui/console.c
View File

@ -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;
}