sdl2: add checking for NULL

PATCH New Pavel Dovgalyuk 1 participant 1 message Jun 26, 2018

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Pavel Dovgalyuk

author

2018-06-26 06:47 UTC #0 lore raw

PATCH 1/1 sdl2: add checking for NULL

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 <[email protected]>

Signed-off-by Maria Klimushenkova <[email protected]>

---
 ui/sdl2.c |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

ui/sdl2.c +3 -3

index 3fff9f5..76e5942 100644
@@ -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;
     }