diff options
| author | Jonas Gorski <jogo@openwrt.org> | 2013-03-12 00:13:42 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2013-03-12 19:14:45 +0000 |
| commit | e2bdae06329ef3fb8918032735cd963efc701b7e (patch) | |
| tree | e0161a3b7168f6f73836393ab5d97b96d039ef08 /drivers/spi/spi-bcm63xx.c | |
| parent | 52f83bbd65c1178ac989e511943ecd6e0c5f8ad8 (diff) | |
| download | lwn-e2bdae06329ef3fb8918032735cd963efc701b7e.tar.gz lwn-e2bdae06329ef3fb8918032735cd963efc701b7e.zip | |
spi/bcm63xx: check spi bits_per_word in spi_setup
Instead of fixing up the bits_per_word (which the spi subsystem already
does for us), check it for supported values.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Acked-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'drivers/spi/spi-bcm63xx.c')
| -rw-r--r-- | drivers/spi/spi-bcm63xx.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/spi/spi-bcm63xx.c b/drivers/spi/spi-bcm63xx.c index 04c460e8bd27..b64229ca7f54 100644 --- a/drivers/spi/spi-bcm63xx.c +++ b/drivers/spi/spi-bcm63xx.c @@ -151,8 +151,11 @@ static void bcm63xx_spi_setup_transfer(struct spi_device *spi, static int bcm63xx_spi_setup(struct spi_device *spi) { - if (!spi->bits_per_word) - spi->bits_per_word = 8; + if (spi->bits_per_word != 8) { + dev_err(&spi->dev, "%s, unsupported bits_per_word=%d\n", + __func__, spi->bits_per_word); + return -EINVAL; + } return 0; } |