src: fix missing error checking in parser functions

Bail out on errors in several nftnl_*_nlmsg_parse() functions. We can
overwrite the previous error value, and may execute code which should
not.

Bad way:
	int f() {
		int ret;

		ret = g();
		ret = h();

		return ret;
	}

Good way:
	int f() {
		int ret;

		ret = g();
		if (ret < 0)
			return ret;

		ret = h();
		if (ret < 0)
			return ret;

		return 0;
	}

Signed-off-by: Carlos Falgueras García <carlosfg@riseup.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

0 files changed, 0 insertions, 0 deletions