diff options
| -rw-r--r-- | drivers/bus/mhi/host/init.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/bus/mhi/host/init.c b/drivers/bus/mhi/host/init.c index 3d779ee6396d..b46a0821adf9 100644 --- a/drivers/bus/mhi/host/init.c +++ b/drivers/bus/mhi/host/init.c @@ -516,6 +516,12 @@ int mhi_init_mmio(struct mhi_controller *mhi_cntrl) return -EIO; } + if (val >= mhi_cntrl->reg_len - (8 * MHI_DEV_WAKE_DB)) { + dev_err(dev, "CHDB offset: 0x%x is out of range: 0x%zx\n", + val, mhi_cntrl->reg_len - (8 * MHI_DEV_WAKE_DB)); + return -ERANGE; + } + /* Setup wake db */ mhi_cntrl->wake_db = base + val + (8 * MHI_DEV_WAKE_DB); mhi_cntrl->wake_set = false; @@ -532,6 +538,12 @@ int mhi_init_mmio(struct mhi_controller *mhi_cntrl) return -EIO; } + if (val >= mhi_cntrl->reg_len - (8 * mhi_cntrl->total_ev_rings)) { + dev_err(dev, "ERDB offset: 0x%x is out of range: 0x%zx\n", + val, mhi_cntrl->reg_len - (8 * mhi_cntrl->total_ev_rings)); + return -ERANGE; + } + /* Setup event db address for each ev_ring */ mhi_event = mhi_cntrl->mhi_event; for (i = 0; i < mhi_cntrl->total_ev_rings; i++, val += 8, mhi_event++) { |