From: Yann Droneaud Date: Wed, 11 Dec 2013 22:01:50 +0000 (+0100) Subject: IB/uverbs: Set error code when fail to consume all flow_spec items X-Git-Tag: v3.13-rc6~12^2^2~2 X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=98a37510ec1452817600d8ea47cff1d9f8d9bec8;p=~emulex%2Finfiniband.git IB/uverbs: Set error code when fail to consume all flow_spec items If the flow_spec items parsed count does not match the number of items declared in the flow_attr command, or if not all bytes are used for flow_spec items (eg. trailing garbage), a log message is reported and the function leave through the error path. Unfortunately the error code is currently not set. This patch set error code to -EINVAL in such cases, so that the error is reported to userspace instead of silently fail. Link: http://marc.info/?i=cover.1386798254.git.ydroneaud@opteya.com> Signed-off-by: Yann Droneaud Signed-off-by: Roland Dreier --- diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c index 4e8b15c5048..45fb80b876b 100644 --- a/drivers/infiniband/core/uverbs_cmd.c +++ b/drivers/infiniband/core/uverbs_cmd.c @@ -2738,6 +2738,7 @@ int ib_uverbs_ex_create_flow(struct ib_uverbs_file *file, if (cmd.flow_attr.size || (i != flow_attr->num_of_specs)) { pr_warn("create flow failed, flow %d: %d bytes left from uverb cmd\n", i, cmd.flow_attr.size); + err = -EINVAL; goto err_free; } flow_id = ib_create_flow(qp, flow_attr, IB_FLOW_DOMAIN_USER);