strtoull returns 0 if it fails to parse input string. It's ignored
in get_integer_arg.
This patch handles error cases for strtoull function.
Signed-off-by: Ivan Dyukov <i.dyu...@samsung.com>
---
drivers/net/virtio/virtio_user_ethdev.c | 13 +++++++++----
1 file changed, 9 insertions(+), 4 deletions(-)
diff --git a/drivers/net/virtio/virtio_user_ethdev.c
b/drivers/net/virtio/virtio_user_ethdev.c
index e61af4068..a79f68a36 100644
--- a/drivers/net/virtio/virtio_user_ethdev.c
+++ b/drivers/net/virtio/virtio_user_ethdev.c
@@ -477,12 +477,17 @@ static int
get_integer_arg(const char *key __rte_unused,
const char *value, void *extra_args)
{
+ uint64_t integer = 0;
if (!value || !extra_args)
return -EINVAL;
-
- *(uint64_t *)extra_args = strtoull(value, NULL, 0);
-
- return 0;
+ errno = 0;
+ integer = strtoull(value, NULL, 0);
+ /* extra_args keeps default value, it should be replaced
+ * only in case of successful parsing of the 'value' arg
+ */
+ if (errno == 0)
+ *(uint64_t *)extra_args = integer;
+ return -errno;
}
static struct rte_eth_dev *
--
2.17.1
