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spi: loopback-test: don't skip comparing the first byte of rx_buf

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When the loopback parameter is set, rx_buf are compared with tx_buf
after the spi_message is executed.  But the first byte of buffer is
not checked.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Akinobu Mita
2017-03-18 03:17:27 +09:00
committed by Mark Brown
parent c4e121aeb7
commit 8494801db1
1 changed files with 1 additions and 1 deletions
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2
drivers/spi/spi-loopback-test.c
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@@ -507,7 +507,7 @@ static int spi_test_check_loopback_result(struct spi_device *spi,
continue; continue;
/* so depending on tx_buf we need to handle things */ /* so depending on tx_buf we need to handle things */
if (xfer->tx_buf) { if (xfer->tx_buf) {
for (i = 1; i < xfer->len; i++) { for (i = 0; i < xfer->len; i++) {
txb = ((u8 *)xfer->tx_buf)[i]; txb = ((u8 *)xfer->tx_buf)[i];
rxb = ((u8 *)xfer->rx_buf)[i]; rxb = ((u8 *)xfer->rx_buf)[i];
if (txb != rxb) if (txb != rxb)