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Fixed crash if allocation for touch device failed.

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If the allocation of an SDL_Touch failed, the number of touch devices was still
increased. Later access of the SDL_Touch would then have dereferenced the NULL.
This commit is contained in:
Philipp Wiesemann 2015-06-12 21:10:31 +02:00
parent 714687427a
commit d8c2b36c21
1 changed files with 4 additions and 1 deletions
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5
src/events/SDL_touch.c
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@ -145,13 +145,16 @@ SDL_AddTouch(SDL_TouchID touchID, const char *name)
}
SDL_touchDevices = touchDevices;
index = SDL_num_touch++;
index = SDL_num_touch;
SDL_touchDevices[index] = (SDL_Touch *) SDL_malloc(sizeof(*SDL_touchDevices[index]));
if (!SDL_touchDevices[index]) {
return SDL_OutOfMemory();
}
/* Added touch to list */
++SDL_num_touch;
/* we're setting the touch properties */
SDL_touchDevices[index]->id = touchID;
SDL_touchDevices[index]->num_fingers = 0;