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Diffstat (limited to 'drivers/thunderbolt/icm.c')
| -rw-r--r-- | drivers/thunderbolt/icm.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/thunderbolt/icm.c b/drivers/thunderbolt/icm.c index 6b1041677604..2d2ceda9aa26 100644 --- a/drivers/thunderbolt/icm.c +++ b/drivers/thunderbolt/icm.c @@ -1452,6 +1452,9 @@ static int icm_firmware_reset(struct tb *tb, struct tb_nhi *nhi) struct icm *icm = tb_priv(tb); u32 val; + if (!icm->upstream_port) + return -ENODEV; + /* Put ARC to wait for CIO reset event to happen */ val = ioread32(nhi->iobase + REG_FW_STS); val |= REG_FW_STS_CIO_RESET_REQ; |