diff mbox

sdl2: add checking for NULL

Message ID 20180626064729.18070.47600.stgit@pasha-VirtualBox (mailing list archive)
State New, archived
Headers show

Commit Message

Pavel Dovgalyuk June 26, 2018, 6:47 a.m. UTC 
Sometimes SDL2 console can't be retrieved on events and scon variable
becomes NULL. This patch prevents processing of the events when the console
is not available.

Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru>
Signed-off-by: Maria Klimushenkova <maria.klimushenkova@ispras.ru>
---
 ui/sdl2.c |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
diff mbox

Patch

diff --git a/ui/sdl2.c b/ui/sdl2.c
index 3fff9f5..76e5942 100644
--- a/ui/sdl2.c
+++ b/ui/sdl2.c
@@ -438,7 +438,7 @@  static void handle_mousemotion(SDL_Event *ev)
     int max_x, max_y;
     struct sdl2_console *scon = get_scon_from_window(ev->motion.windowID);
 
-    if (!qemu_console_is_graphic(scon->dcl.con)) {
+    if (!scon || !qemu_console_is_graphic(scon->dcl.con)) {
         return;
     }
 
@@ -470,7 +470,7 @@  static void handle_mousebutton(SDL_Event *ev)
     SDL_MouseButtonEvent *bev;
     struct sdl2_console *scon = get_scon_from_window(ev->button.windowID);
 
-    if (!qemu_console_is_graphic(scon->dcl.con)) {
+    if (!scon || !qemu_console_is_graphic(scon->dcl.con)) {
         return;
     }
 
@@ -496,7 +496,7 @@  static void handle_mousewheel(SDL_Event *ev)
     SDL_MouseWheelEvent *wev = &ev->wheel;
     InputButton btn;
 
-    if (!qemu_console_is_graphic(scon->dcl.con)) {
+    if (!scon || !qemu_console_is_graphic(scon->dcl.con)) {
         return;
     }