* [PATCH net] ionic: check port ptr before use
@ 2020-11-04 19:56 Shannon Nelson
2020-11-05 18:01 ` Jakub Kicinski
0 siblings, 1 reply; 2+ messages in thread
From: Shannon Nelson @ 2020-11-04 19:56 UTC (permalink / raw)
To: netdev, davem, kuba; +Cc: Shannon Nelson
Check for corner case of port_init failure before using
the port_info pointer.
Fixes: 4d03e00a2140 ("ionic: Add initial ethtool support")
Signed-off-by: Shannon Nelson <snelson@pensando.io>
---
drivers/net/ethernet/pensando/ionic/ionic_ethtool.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_ethtool.c b/drivers/net/ethernet/pensando/ionic/ionic_ethtool.c
index ed9808fc743b..35c72d4a78b3 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_ethtool.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_ethtool.c
@@ -126,6 +126,11 @@ static int ionic_get_link_ksettings(struct net_device *netdev,
ethtool_link_ksettings_zero_link_mode(ks, supported);
+ if (!idev->port_info) {
+ netdev_err(netdev, "port_info not initialized\n");
+ return -EOPNOTSUPP;
+ }
+
/* The port_info data is found in a DMA space that the NIC keeps
* up-to-date, so there's no need to request the data from the
* NIC, we already have it in our memory space.
--
2.17.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH net] ionic: check port ptr before use
2020-11-04 19:56 [PATCH net] ionic: check port ptr before use Shannon Nelson
@ 2020-11-05 18:01 ` Jakub Kicinski
0 siblings, 0 replies; 2+ messages in thread
From: Jakub Kicinski @ 2020-11-05 18:01 UTC (permalink / raw)
To: Shannon Nelson; +Cc: netdev, davem
On Wed, 4 Nov 2020 11:56:06 -0800 Shannon Nelson wrote:
> Check for corner case of port_init failure before using
> the port_info pointer.
>
> Fixes: 4d03e00a2140 ("ionic: Add initial ethtool support")
> Signed-off-by: Shannon Nelson <snelson@pensando.io>
Applied, thanks.
^ permalink raw reply [flat|nested] 2+ messages in thread
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2020-11-04 19:56 [PATCH net] ionic: check port ptr before use Shannon Nelson
2020-11-05 18:01 ` Jakub Kicinski
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