[dpdk-dev] [PATCH 1/4] net/sfc: avoid usage of possibly uninitialized link_mode
Andrew Rybchenko
arybchenko at solarflare.com
Thu Jan 12 10:03:20 CET 2017
In fact efx_port_poll() always initializes it, but it isn't
explicitly documented feature of the API. Moreover, the API
annocation suggests that return code should be checked.
Fixes: 215e8b89d8a8 ("net/sfc: implement device operation to retrieve link info")
Signed-off-by: Andrew Rybchenko <arybchenko at solarflare.com>
Reviewed-by: Andrew Lee <alee at solarflare.com>
---
drivers/net/sfc/sfc_ethdev.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/sfc/sfc_ethdev.c b/drivers/net/sfc/sfc_ethdev.c
index 3f0df76..d13b6d6 100644
--- a/drivers/net/sfc/sfc_ethdev.c
+++ b/drivers/net/sfc/sfc_ethdev.c
@@ -198,7 +198,8 @@
if (wait_to_complete) {
efx_link_mode_t link_mode;
- efx_port_poll(sa->nic, &link_mode);
+ if (efx_port_poll(sa->nic, &link_mode) != 0)
+ link_mode = EFX_LINK_UNKNOWN;
sfc_port_link_mode_to_info(link_mode, ¤t_link);
if (!rte_atomic64_cmpset((volatile uint64_t *)dev_link,
--
1.8.2.3
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