diff options
Diffstat (limited to 'hw/i2c/pm_smbus.c')
| -rw-r--r-- | hw/i2c/pm_smbus.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/hw/i2c/pm_smbus.c b/hw/i2c/pm_smbus.c index 83c2377bb4..f1fe889043 100644 --- a/hw/i2c/pm_smbus.c +++ b/hw/i2c/pm_smbus.c @@ -117,10 +117,16 @@ static void smb_transaction(PMSMBus *s) break; case PROT_I2C_BLOCK_DATA: if (read) { - ret = smbus_read_block(bus, addr, cmd, s->smb_data); + int xfersize = s->smb_data0; + if (xfersize > sizeof(s->smb_data)) { + xfersize = sizeof(s->smb_data); + } + ret = smbus_read_block(bus, addr, s->smb_data1, s->smb_data, + xfersize, false, true); goto data8; } else { - ret = smbus_write_block(bus, addr, cmd, s->smb_data, s->smb_data0); + ret = smbus_write_block(bus, addr, cmd, s->smb_data, s->smb_data0, + false); goto done; } break; |