diff options
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/typec/tcpm/tcpm.c | 38 |
1 files changed, 24 insertions, 14 deletions
diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c index ab6456622120..15abe1d9958f 100644 --- a/drivers/usb/typec/tcpm/tcpm.c +++ b/drivers/usb/typec/tcpm/tcpm.c @@ -1109,7 +1109,8 @@ static int tcpm_pd_svdm(struct tcpm_port *port, const __le32 *payload, int cnt, break; case CMD_ATTENTION: /* Attention command does not have response */ - typec_altmode_attention(adev, p[1]); + if (adev) + typec_altmode_attention(adev, p[1]); return 0; default: break; @@ -1161,20 +1162,26 @@ static int tcpm_pd_svdm(struct tcpm_port *port, const __le32 *payload, int cnt, } break; case CMD_ENTER_MODE: - typec_altmode_update_active(pdev, true); - - if (typec_altmode_vdm(adev, p[0], &p[1], cnt)) { - response[0] = VDO(adev->svid, 1, CMD_EXIT_MODE); - response[0] |= VDO_OPOS(adev->mode); - return 1; + if (adev && pdev) { + typec_altmode_update_active(pdev, true); + + if (typec_altmode_vdm(adev, p[0], &p[1], cnt)) { + response[0] = VDO(adev->svid, 1, + CMD_EXIT_MODE); + response[0] |= VDO_OPOS(adev->mode); + return 1; + } } return 0; case CMD_EXIT_MODE: - typec_altmode_update_active(pdev, false); + if (adev && pdev) { + typec_altmode_update_active(pdev, false); - /* Back to USB Operation */ - WARN_ON(typec_altmode_notify(adev, TYPEC_STATE_USB, - NULL)); + /* Back to USB Operation */ + WARN_ON(typec_altmode_notify(adev, + TYPEC_STATE_USB, + NULL)); + } break; default: break; @@ -1184,8 +1191,10 @@ static int tcpm_pd_svdm(struct tcpm_port *port, const __le32 *payload, int cnt, switch (cmd) { case CMD_ENTER_MODE: /* Back to USB Operation */ - WARN_ON(typec_altmode_notify(adev, TYPEC_STATE_USB, - NULL)); + if (adev) + WARN_ON(typec_altmode_notify(adev, + TYPEC_STATE_USB, + NULL)); break; default: break; @@ -1196,7 +1205,8 @@ static int tcpm_pd_svdm(struct tcpm_port *port, const __le32 *payload, int cnt, } /* Informing the alternate mode drivers about everything */ - typec_altmode_vdm(adev, p[0], &p[1], cnt); + if (adev) + typec_altmode_vdm(adev, p[0], &p[1], cnt); return rlen; } |