diff mbox series

[net,v1,3/6] igc: Add checking for basetime less than zero

Message ID 20221209041522.30153-4-muhammad.husaini.zulkifli@intel.com
State Accepted
Delegated to: Anthony Nguyen
Headers show
Series igc: Fix for Qbv features | expand

Commit Message

Zulkifli, Muhammad Husaini Dec. 9, 2022, 4:15 a.m. UTC 
Using the tc qdisc command, the user can set basetime to any value.
Checking should be done on the driver's side to prevent registering
basetime values that are less than zero.

Fixes: ec50a9d437f0 ("igc: Add support for taprio offloading")
Signed-off-by: Muhammad Husaini Zulkifli <muhammad.husaini.zulkifli@intel.com>
---
 drivers/net/ethernet/intel/igc/igc_main.c | 3 +++
 1 file changed, 3 insertions(+)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/intel/igc/igc_main.c b/drivers/net/ethernet/intel/igc/igc_main.c
index 524f330230d7..a88840bbeeaf 100644
--- a/drivers/net/ethernet/intel/igc/igc_main.c
+++ b/drivers/net/ethernet/intel/igc/igc_main.c
@@ -6030,6 +6030,9 @@  static int igc_save_qbv_schedule(struct igc_adapter *adapter,
 	if (!qopt->enable)
 		return igc_tsn_clear_schedule(adapter);
 
+	if (qopt->base_time < 0)
+		return -ERANGE;
+
 	if (adapter->base_time)
 		return -EALREADY;