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Fixed bug 2956 - De-reference videodata without NULL check in X11_DispatchEvent(_THIS) function

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This commit is contained in:
Sam Lantinga 2016-10-07 17:26:25 -07:00
parent 93ff12ce83
commit 8b64a78da9
1 changed files with 6 additions and 1 deletions
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7
src/video/x11/SDL_x11events.c
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@ -536,7 +536,7 @@ static void
X11_DispatchEvent(_THIS) X11_DispatchEvent(_THIS)
{ {
SDL_VideoData *videodata = (SDL_VideoData *) _this->driverdata; SDL_VideoData *videodata = (SDL_VideoData *) _this->driverdata;
Display *display = videodata->display; Display *display;
SDL_WindowData *data; SDL_WindowData *data;
XEvent xevent; XEvent xevent;
int orig_event_type; int orig_event_type;
@ -544,6 +544,11 @@ X11_DispatchEvent(_THIS)
XClientMessageEvent m; XClientMessageEvent m;
int i; int i;
if (!videodata) {
return;
}
display = videodata->display;
SDL_zero(xevent); /* valgrind fix. --ryan. */ SDL_zero(xevent); /* valgrind fix. --ryan. */
X11_XNextEvent(display, &xevent); X11_XNextEvent(display, &xevent);