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	surface: fix double wl_buffer.release events
Prior to this commit, we re-uploaded the buffer even if a new one
wasn't attached. After uploading, we send wl_buffer.release. So,
this sequence of requests resulted in a double release:
    surface.attach(buffer, 0, 0)
    surface.commit()
    <- buffer.release()
    surface.commit()
    <- buffer.release()
			
			
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					 1 changed files with 4 additions and 9 deletions
				
			
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			@ -325,8 +325,7 @@ static void surface_damage_subsurfaces(struct wlr_subsurface *subsurface) {
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	}
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}
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static void surface_apply_damage(struct wlr_surface *surface,
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		bool invalid_buffer) {
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static void surface_apply_damage(struct wlr_surface *surface) {
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	struct wl_resource *resource = surface->current->buffer;
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	if (resource == NULL) {
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		// NULL commit
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			@ -335,12 +334,6 @@ static void surface_apply_damage(struct wlr_surface *surface,
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		return;
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	}
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	if (surface->buffer != NULL && !surface->buffer->released &&
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			!invalid_buffer) {
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		// The buffer is still the same, no need to re-upload
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		return;
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	}
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	if (surface->buffer != NULL && surface->buffer->released) {
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		pixman_region32_t damage;
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		pixman_region32_init(&damage);
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			@ -376,7 +369,9 @@ static void surface_commit_pending(struct wlr_surface *surface) {
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	surface_move_state(surface, surface->pending, surface->current);
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	surface_apply_damage(surface, invalid_buffer);
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	if (invalid_buffer) {
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		surface_apply_damage(surface);
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	}
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	// commit subsurface order
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	struct wlr_subsurface *subsurface;
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