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| author | Oliver Hartkopp <socketcan@hartkopp.net> | 2017-12-02 18:48:52 +0100 |
|---|---|---|
| committer | Marc Kleine-Budde <mkl@pengutronix.de> | 2018-01-04 16:14:38 +0100 |
| commit | b4c2951a4833e66f1bbfe65ddcd4fdcdfafe5e8f (patch) | |
| tree | e3c18bcd6fb144fd1c2c94463b0a350e7d65d7fb /drivers/net/can/vxcan.c | |
| parent | 820d1d5eba5e0db88432f4b19149d87523ee193c (diff) | |
| download | linux-b4c2951a4833e66f1bbfe65ddcd4fdcdfafe5e8f.tar.bz2 | |
can: vxcan: improve handling of missing peer name attribute
Picking up the patch from Serhey Popovych (commit 191cdb3822e5df6b3c8,
"veth: Be more robust on network device creation when no attributes").
When the peer name attribute is not provided the former implementation tries
to register the given device name twice ... which leads to -EEXIST.
If only one device name is given apply an automatic generated and valid name
for the peer.
Cc: Serhey Popovych <serhe.popovych@gmail.com>
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'drivers/net/can/vxcan.c')
| -rw-r--r-- | drivers/net/can/vxcan.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/can/vxcan.c b/drivers/net/can/vxcan.c index 8404e8852a0f..b4c4a2c76437 100644 --- a/drivers/net/can/vxcan.c +++ b/drivers/net/can/vxcan.c @@ -194,7 +194,7 @@ static int vxcan_newlink(struct net *net, struct net_device *dev, tbp = peer_tb; } - if (tbp[IFLA_IFNAME]) { + if (ifmp && tbp[IFLA_IFNAME]) { nla_strlcpy(ifname, tbp[IFLA_IFNAME], IFNAMSIZ); name_assign_type = NET_NAME_USER; } else { |