net: sched: potential NULL dereference in tcf_block_find()
The error code isn't set on this path so it would result in returning ERR_PTR(0) and a NULL dereference in the caller. Fixes: 18d3eefb ("net: sched: refactor tcf_block_find() into standalone functions") Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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