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authorMartin Sperl <kernel@martin.sperl.org>2015-12-22 18:03:21 +0000
committerMark Brown <broonie@kernel.org>2016-01-05 19:05:23 +0000
commite6520a3c8877d02c471135afb371e79b04409ab8 (patch)
tree8bb9ea2c10d7a4b5e53efaee617cb00e0e93c066 /drivers/spi
parent739f3e92916b6076afbfc3b524ec120468478035 (diff)
spi: loopback-test: write rx pattern also when running without tx_buf
Currently the rx_buf does not get set with the SPI_TEST_PATTERN_UNWRITTEN when tx_buf == NULL in the transfer. Reorder code so that it gets done also under this specific condition. Signed-off-by: Martin Sperl <kernel@martin.sperl.org> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi')
-rw-r--r--drivers/spi/spi-loopback-test.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/spi/spi-loopback-test.c b/drivers/spi/spi-loopback-test.c
index 7f497acc906c..8af2e4070153 100644
--- a/drivers/spi/spi-loopback-test.c
+++ b/drivers/spi/spi-loopback-test.c
@@ -591,6 +591,10 @@ static int spi_test_fill_tx(struct spi_device *spi, struct spi_test *test)
/* fill all transfers with the pattern requested */
for (i = 0; i < test->transfer_count; i++) {
+ /* fill rx_buf with SPI_TEST_PATTERN_UNWRITTEN */
+ if (xfers[i].rx_buf)
+ memset(xfers[i].rx_buf, SPI_TEST_PATTERN_UNWRITTEN,
+ xfers[i].len);
/* if tx_buf is NULL then skip */
tx_buf = (u8 *)xfers[i].tx_buf;
if (!tx_buf)
@@ -648,10 +652,6 @@ static int spi_test_fill_tx(struct spi_device *spi, struct spi_test *test)
return -EINVAL;
}
}
- /* fill rx_buf with SPI_TEST_PATTERN_UNWRITTEN */
- if (xfers[i].rx_buf)
- memset(xfers[i].rx_buf, SPI_TEST_PATTERN_UNWRITTEN,
- xfers[i].len);
}
return 0;