raw/ioat: fix kvlist free
Checks
Commit Message
There is a null pointer check in 'idxd_vdev_parse_params()' which is
causing a coverity issue. This check is redundant as the same check is
being done in 'rte_kvargs_free()', so it is simply removed in this patch.
In addition, kvlist was only being free'd on one path in this function.
This is fixed by always free'ing kvlist before returning.
Coverity issue: 363049
Fixes: 777edf43ae4f ("raw/ioat: introduce vdev probe for DSA/idxd device")
Signed-off-by: Kevin Laatz <kevin.laatz@intel.com>
---
drivers/raw/ioat/idxd_vdev.c | 14 ++++++--------
1 file changed, 6 insertions(+), 8 deletions(-)
Comments
14/10/2020 12:09, Kevin Laatz:
> There is a null pointer check in 'idxd_vdev_parse_params()' which is
> causing a coverity issue. This check is redundant as the same check is
> being done in 'rte_kvargs_free()', so it is simply removed in this patch.
>
> In addition, kvlist was only being free'd on one path in this function.
> This is fixed by always free'ing kvlist before returning.
>
> Coverity issue: 363049
> Fixes: 777edf43ae4f ("raw/ioat: introduce vdev probe for DSA/idxd device")
>
> Signed-off-by: Kevin Laatz <kevin.laatz@intel.com>
Applied, thanks
@@ -93,23 +93,21 @@ idxd_rawdev_parse_wq(const char *key __rte_unused, const char *value,
static int
idxd_vdev_parse_params(struct rte_kvargs *kvlist, struct idxd_vdev_args *args)
{
+ int ret = 0;
+
if (rte_kvargs_count(kvlist, IDXD_ARG_WQ) == 1) {
if (rte_kvargs_process(kvlist, IDXD_ARG_WQ,
&idxd_rawdev_parse_wq, args) < 0) {
IOAT_PMD_ERR("Error parsing %s", IDXD_ARG_WQ);
- goto free;
+ ret = -EINVAL;
}
} else {
IOAT_PMD_ERR("%s is a mandatory arg", IDXD_ARG_WQ);
- return -EINVAL;
+ ret = -EINVAL;
}
- return 0;
-
-free:
- if (kvlist)
- rte_kvargs_free(kvlist);
- return -EINVAL;
+ rte_kvargs_free(kvlist);
+ return ret;
}
static int