diff mbox series

[net,04/18] net/mlx5e: Set PTP channel pointer explicitly to NULL

Message ID 20210310190342.238957-5-saeed@kernel.org (mailing list archive)
State Not Applicable
Headers show
Series [net,01/18] net/mlx5e: Enforce minimum value check for ICOSQ size | expand

Commit Message

Saeed Mahameed March 10, 2021, 7:03 p.m. UTC 
From: Aya Levin <ayal@nvidia.com>

When closing the PTP channel, set its pointer explicitly to NULL. PTP
channel is opened on demand, the code verify the pointer validity before
access. Nullify it when closing the PTP channel to avoid unexpected
behavior.

Fixes: 145e5637d941 ("net/mlx5e: Add TX PTP port object support")
Signed-off-by: Aya Levin <ayal@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index 9e2a30dc5e4f..66d23cd275c1 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -2503,8 +2503,10 @@  void mlx5e_close_channels(struct mlx5e_channels *chs)
 {
 	int i;
 
-	if (chs->port_ptp)
+	if (chs->port_ptp) {
 		mlx5e_port_ptp_close(chs->port_ptp);
+		chs->port_ptp = NULL;
+	}
 
 	for (i = 0; i < chs->num; i++)
 		mlx5e_close_channel(chs->c[i]);