nft: Exit if nftnl_alloc_expr fails

In some code-paths, 'reg' pointer remaining uninitialized is used later
so at least minimal error checking is necessary. Given that a call to
nftnl_alloc_expr() with sane argument should never fail, complain and
exit if it happens.

Fixes: 7e38890c6b4fb ("nft: prepare for dynamic register allocation")
Signed-off-by: Phil Sutter <phil@nwl.cc>

0 files changed, 0 insertions, 0 deletions