Re: [PATCH 088/117] Staging: hv: netvsc: Inline the code for free_net_device()
From: Dan Carpenter <hidden>
Date: 2011-07-16 10:35:36
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On Fri, Jul 15, 2011 at 10:47:16AM -0700, K. Y. Srinivasan wrote:
-static void free_net_device(struct netvsc_device *device)
-{
- WARN_ON(atomic_read(&device->refcnt) != 0);
- device->dev->ext = NULL;device->dev->ext points to device. We set it NULL here to prevent a use after free bug. What prevents that in the new code?
- kfree(device); -}
regards, dan carpenter