diff options
| author | Parav Pandit <parav@mellanox.com> | 2019-02-12 23:23:58 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-02-14 19:45:39 +0300 |
| commit | fdd41ec21e150113e8fe169783db9b2030f5491b (patch) | |
| tree | 2a7e8c079d4511a956debfd7e8b0c9a7b4b08be8 | |
| parent | 415d39427317d1532d7f097471cc8aca5f229b69 (diff) | |
| download | linux-fdd41ec21e150113e8fe169783db9b2030f5491b.tar.xz | |
devlink: Return right error code in case of errors for region read
devlink_nl_cmd_region_read_dumpit() misses to return right error code on
most error conditions.
Return the right error code on such errors.
Fixes: 4e54795a27f5 ("devlink: Add support for region snapshot read command")
Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/core/devlink.c | 26 |
1 files changed, 19 insertions, 7 deletions
diff --git a/net/core/devlink.c b/net/core/devlink.c index 283c3ed9f25e..312084f76a0a 100644 --- a/net/core/devlink.c +++ b/net/core/devlink.c @@ -3646,26 +3646,34 @@ static int devlink_nl_cmd_region_read_dumpit(struct sk_buff *skb, goto out_free; devlink = devlink_get_from_attrs(sock_net(cb->skb->sk), attrs); - if (IS_ERR(devlink)) + if (IS_ERR(devlink)) { + err = PTR_ERR(devlink); goto out_free; + } mutex_lock(&devlink_mutex); mutex_lock(&devlink->lock); if (!attrs[DEVLINK_ATTR_REGION_NAME] || - !attrs[DEVLINK_ATTR_REGION_SNAPSHOT_ID]) + !attrs[DEVLINK_ATTR_REGION_SNAPSHOT_ID]) { + err = -EINVAL; goto out_unlock; + } region_name = nla_data(attrs[DEVLINK_ATTR_REGION_NAME]); region = devlink_region_get_by_name(devlink, region_name); - if (!region) + if (!region) { + err = -EINVAL; goto out_unlock; + } hdr = genlmsg_put(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq, &devlink_nl_family, NLM_F_ACK | NLM_F_MULTI, DEVLINK_CMD_REGION_READ); - if (!hdr) + if (!hdr) { + err = -EMSGSIZE; goto out_unlock; + } err = devlink_nl_put_handle(skb, devlink); if (err) @@ -3676,8 +3684,10 @@ static int devlink_nl_cmd_region_read_dumpit(struct sk_buff *skb, goto nla_put_failure; chunks_attr = nla_nest_start(skb, DEVLINK_ATTR_REGION_CHUNKS); - if (!chunks_attr) + if (!chunks_attr) { + err = -EMSGSIZE; goto nla_put_failure; + } if (attrs[DEVLINK_ATTR_REGION_CHUNK_ADDR] && attrs[DEVLINK_ATTR_REGION_CHUNK_LEN]) { @@ -3700,8 +3710,10 @@ static int devlink_nl_cmd_region_read_dumpit(struct sk_buff *skb, goto nla_put_failure; /* Check if there was any progress done to prevent infinite loop */ - if (ret_offset == start_offset) + if (ret_offset == start_offset) { + err = -EINVAL; goto nla_put_failure; + } *((u64 *)&cb->args[0]) = ret_offset; @@ -3720,7 +3732,7 @@ out_unlock: mutex_unlock(&devlink_mutex); out_free: kfree(attrs); - return 0; + return err; } struct devlink_info_req { |