From: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru>
Date: Tue, 26 Jun 2018 06:47:29 +0000 (+0300)
Subject: sdl2: add checking for NULL
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=49213b721f4620364aa09142b5f4d559fed26b53;p=qemu.git

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 <Pavel.Dovgaluk@ispras.ru>
Signed-off-by: Maria Klimushenkova <maria.klimushenkova@ispras.ru>
Message-id: 20180626064729.18070.47600.stgit@pasha-VirtualBox
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---

diff --git a/ui/sdl2.c b/ui/sdl2.c
index 3fff9f5b63..76e59427cc 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;
     }