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Commit 15b6b804 authored by Dan Carpenter's avatar Dan Carpenter Committed by Daniel Vetter
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drm/vmwgfx: fix a NULL dereference 



We dereference "eaction->event" inside the call to drm_send_event_locked()
so should hold off on setting it to NULL until afterward.

Fixes: fb740cf2 ("drm: Create drm_send_event helpers")
Signed-off-by: default avatarDan Carpenter <dan.carpenter@oracle.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20160128090646.GA5824@mwanda


Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent 09859d2a

drivers/gpu/drm/vmwgfx/vmwgfx_fence.c

+1 −1
Original line number Diff line number Diff line
@@ -880,8 +880,8 @@ static void vmw_event_fence_action_seq_passed(struct vmw_fence_action *action) 
	}



	list_del_init(&eaction->fpriv_head);

	eaction->event = NULL;

	drm_send_event_locked(dev, eaction->event);

	eaction->event = NULL;

	spin_unlock_irqrestore(&dev->event_lock, irq_flags);

}