netdev - [PATCH iproute2 1/2] tc: flower: Add missing err check when parsing flower options

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Date:   Thu, 19 Jan 2017 14:31:19 +0200
From:   Roi Dayan <roid@...lanox.com>
To:     Stephen Hemminger <stephen@...workplumber.org>
Cc:     netdev@...r.kernel.org, Amir Vadai <amir@...ai.me>,
        Jiri Pirko <jiri@...lanox.com>,
        Jamal Hadi Salim <jhs@...atatu.com>,
        Paul Blakey <paulb@...lanox.com>, Roi Dayan <roid@...lanox.com>
Subject: [PATCH iproute2 1/2] tc: flower: Add missing err check when parsing flower options

addattr32 may return an error.

Fixes: cfcabf18d84a ("tc: flower: Add skip_{hw|sw} support")
Signed-off-by: Roi Dayan <roid@...lanox.com>
Reviewed-by: Paul Blakey <paulb@...lanox.com>
---
 tc/f_flower.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/tc/f_flower.c b/tc/f_flower.c
index 1dbc532..1272a47 100644
--- a/tc/f_flower.c
+++ b/tc/f_flower.c
@@ -525,7 +525,9 @@ static int flower_parse_opt(struct filter_util *qu, char *handle,
 	}
 
 parse_done:
-	addattr32(n, MAX_MSG, TCA_FLOWER_FLAGS, flags);
+	ret = addattr32(n, MAX_MSG, TCA_FLOWER_FLAGS, flags);
+	if (ret)
+		return ret;
 
 	ret = addattr16(n, MAX_MSG, TCA_FLOWER_KEY_ETH_TYPE, eth_type);
 	if (ret) {
-- 
1.7.1