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net: devlink: skip info_get op call if it is not defined in dumpit 

In dumpit, unlike doit, the check for info_get op being defined
is missing. Add it and avoid null pointer dereference in case driver
does not define this op.

Fixes: f9cf22882c ("devlink: add device information API")
Reported-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Pirko 2019-03-24 00:21:03 +01:00 committed by David S. Miller
parent 450895d04b
commit c493b09b27
1 changed files with 5 additions and 0 deletions
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5
net/core/devlink.c
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@ -3897,6 +3897,11 @@ static int devlink_nl_cmd_info_get_dumpit(struct sk_buff *msg,
continue;
}
if (!devlink->ops->info_get) {
idx++;
continue;
}
mutex_lock(&devlink->lock);
err = devlink_nl_info_fill(msg, devlink, DEVLINK_CMD_INFO_GET,
NETLINK_CB(cb->skb).portid,