net: dsa: sja1105: Check return value
authorArtem Chernyshev <artem.chernyshev@red-soft.ru>
Thu, 1 Dec 2022 14:00:32 +0000 (17:00 +0300)
committerJakub Kicinski <kuba@kernel.org>
Sat, 3 Dec 2022 04:46:52 +0000 (20:46 -0800)
commit8948876335b1752176afdff8e704099a3ea0f6e6
treed2897b79825eace061b67d0171df6fc341c20f55
parentd4edb50688652eb10be270bc515da63815de428f
net: dsa: sja1105: Check return value

Return NULL if we got unexpected value from skb_trim_rcsum() in
sja1110_rcv_inband_control_extension()

Fixes: 4913b8ebf8a9 ("net: dsa: add support for the SJA1110 native tagging protocol")
Signed-off-by: Artem Chernyshev <artem.chernyshev@red-soft.ru>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20221201140032.26746-3-artem.chernyshev@red-soft.ru
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
net/dsa/tag_sja1105.c