diff options
Diffstat (limited to 'drivers/i2c/i2c-core-acpi.c')
| -rw-r--r-- | drivers/i2c/i2c-core-acpi.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/i2c/i2c-core-acpi.c b/drivers/i2c/i2c-core-acpi.c index b8f303dea305..32affd3fa8bd 100644 --- a/drivers/i2c/i2c-core-acpi.c +++ b/drivers/i2c/i2c-core-acpi.c @@ -453,8 +453,12 @@ static int acpi_gsb_i2c_read_bytes(struct i2c_client *client, else dev_err(&client->adapter->dev, "i2c read %d bytes from client@%#x starting at reg %#x failed, error: %d\n", data_len, client->addr, cmd, ret); - } else { + /* 2 transfers must have completed successfully */ + } else if (ret == 2) { memcpy(data, buffer, data_len); + ret = 0; + } else { + ret = -EIO; } kfree(buffer); @@ -595,8 +599,6 @@ i2c_acpi_space_handler(u32 function, acpi_physical_address command, if (action == ACPI_READ) { status = acpi_gsb_i2c_read_bytes(client, command, gsb->data, info->access_length); - if (status > 0) - status = 0; } else { status = acpi_gsb_i2c_write_bytes(client, command, gsb->data, info->access_length); |