Re: [PATCH] net: xgene: fix possible NULL dereference in xgene_enet_free_desc_rings()

From: Iyappan Subramanian <redacted>
Date: Thu, 21 Aug 2014 13:44:48 -0700

A NULL pointer dereference is possible for the argument ring->buf_pool
which is passed to xgene_enet_free_desc_ring(), as ring could be NULL.

And now since NULL pointers are being checked for before the calls to
xgene_enet_free_desc_ring(), might as well take advantage of them and
not call the function if the argument would be NULL.

Reported-by: Dan Carpenter <redacted>
Signed-off-by: Iyappan Subramanian <redacted>

Applied, thanks.