diff options
Diffstat (limited to 'drivers/slimbus/qcom-ngd-ctrl.c')
| -rw-r--r-- | drivers/slimbus/qcom-ngd-ctrl.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/slimbus/qcom-ngd-ctrl.c b/drivers/slimbus/qcom-ngd-ctrl.c index 986e8de4146a..7218fb963d0a 100644 --- a/drivers/slimbus/qcom-ngd-ctrl.c +++ b/drivers/slimbus/qcom-ngd-ctrl.c @@ -1004,6 +1004,7 @@ static int qcom_slim_ngd_get_laddr(struct slim_controller *ctrl, struct slim_eaddr *ea, u8 *laddr) { struct slim_val_inf msg = {0}; + u8 failed_ea[6] = {0, 0, 0, 0, 0, 0}; struct slim_msg_txn txn; u8 wbuf[10] = {0}; u8 rbuf[10] = {0}; @@ -1034,6 +1035,9 @@ static int qcom_slim_ngd_get_laddr(struct slim_controller *ctrl, return ret; } + if (!memcmp(rbuf, failed_ea, 6)) + return -ENXIO; + *laddr = rbuf[6]; return ret; |