diff options
| -rw-r--r-- | drivers/spi/spi_bfin5xx.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/spi/spi_bfin5xx.c b/drivers/spi/spi_bfin5xx.c index 21de8605dbc..bd182145bc2 100644 --- a/drivers/spi/spi_bfin5xx.c +++ b/drivers/spi/spi_bfin5xx.c @@ -644,11 +644,16 @@ static void bfin_spi_pump_transfers(unsigned long data) drv_data->len = transfer->len; cr_width = 0; drv_data->ops = &bfin_transfer_ops_u8; - } else { + } else if (bits_per_word == 16) { drv_data->n_bytes = 2; drv_data->len = (transfer->len) >> 1; cr_width = BIT_CTL_WORDSIZE; drv_data->ops = &bfin_transfer_ops_u16; + } else { + dev_err(&drv_data->pdev->dev, "transfer: unsupported bits_per_word\n"); + message->status = -EINVAL; + bfin_spi_giveback(drv_data); + return; } cr = read_CTRL(drv_data) & ~(BIT_CTL_TIMOD | BIT_CTL_WORDSIZE); cr |= cr_width; |