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devlink: Fix some error codes

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These paths don't set the error codes.  It's especially important in
devlink_nl_region_notify_build() where it leads to a NULL dereference in
the caller.

Fixes: 544e7c33ec ("net: devlink: Add support for port regions")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20201026080059.GA1628785@mwanda
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Dan Carpenter 2020-10-26 11:00:59 +03:00 committed by Jakub Kicinski
parent 6daa1da4e2
commit 6c211809c8
1 changed files with 15 additions and 9 deletions
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24
net/core/devlink.c
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@ -4213,10 +4213,12 @@ static int devlink_nl_region_fill(struct sk_buff *msg, struct devlink *devlink,
if (err)
goto nla_put_failure;
if (region->port)
if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX,
region->port->index))
if (region->port) {
err = nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX,
region->port->index);
if (err)
goto nla_put_failure;
}
err = nla_put_string(msg, DEVLINK_ATTR_REGION_NAME, region->ops->name);
if (err)
@ -4265,10 +4267,12 @@ devlink_nl_region_notify_build(struct devlink_region *region,
if (err)
goto out_cancel_msg;
if (region->port)
if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX,
region->port->index))
if (region->port) {
err = nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX,
region->port->index);
if (err)
goto out_cancel_msg;
}
err = nla_put_string(msg, DEVLINK_ATTR_REGION_NAME,
region->ops->name);
@ -4962,10 +4966,12 @@ static int devlink_nl_cmd_region_read_dumpit(struct sk_buff *skb,
if (err)
goto nla_put_failure;
if (region->port)
if (nla_put_u32(skb, DEVLINK_ATTR_PORT_INDEX,
region->port->index))
if (region->port) {
err = nla_put_u32(skb, DEVLINK_ATTR_PORT_INDEX,
region->port->index);
if (err)
goto nla_put_failure;
}
err = nla_put_string(skb, DEVLINK_ATTR_REGION_NAME, region_name);
if (err)