In efx_devlink_info_board_cfg(), the return value of devlink_info_serial_number_put() needs to be checked. This could result in silent failures if the function failed.

Add error checking for efx_devlink_info_board_cfg() and propagate any errors immediately to ensure proper error handling and prevents silent failures.

Fixes: 14743ddd2495 ("sfc: add devlink info support for ef100") Cc: stable@vger.kernel.org # v6.3+ Signed-off-by: Wentao Liang vulab@iscas.ac.cn --- drivers/net/ethernet/sfc/efx_devlink.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/sfc/efx_devlink.c b/drivers/net/ethernet/sfc/efx_devlink.c index 3cd750820fdd..17279bbd81d5 100644 --- a/drivers/net/ethernet/sfc/efx_devlink.c +++ b/drivers/net/ethernet/sfc/efx_devlink.c @@ -581,12 +581,14 @@ static int efx_devlink_info_board_cfg(struct efx_nic *efx, { char sn[EFX_MAX_SERIALNUM_LEN]; u8 mac_address[ETH_ALEN]; - int rc; + int rc, err;

rc = efx_mcdi_get_board_cfg(efx, (u8 *)mac_address, NULL, NULL); if (!rc) { snprintf(sn, EFX_MAX_SERIALNUM_LEN, "%pm", mac_address); - devlink_info_serial_number_put(req, sn); + err = devlink_info_serial_number_put(req, sn); + if (err) + return err; } return rc; }