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authorGuenter Roeck <linux@roeck-us.net>2012-08-22 17:28:55 -0700
committerMark Brown <broonie@opensource.wolfsonmicro.com>2012-08-23 12:13:54 +0100
commit58ed90de3ef58a19c035355a4a0cd6dfef6d6b0c (patch)
tree41dd44c2d22f365d9d7f2cb4b1335cf9d3180952 /drivers
parent41962f90c605983fb04c23bab9c060c9f49ee4c3 (diff)
downloadlinux-linaro-stable-58ed90de3ef58a19c035355a4a0cd6dfef6d6b0c.tar.gz
spi/sc18is602: Return -EINVAL for probe failures due to I2C function mismatch
If the I2C bus master driver does not support the required functionality, the driver returns -ENODEV. This causes a silent probe failure without error message. Since the device has to be explicitly instantiated, and the user should know the correct bus, this event really reflects an error condition. Replace error return value with -EINVAL to trigger an error message showing that the probe function failed. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/spi/spi-sc18is602.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/spi/spi-sc18is602.c b/drivers/spi/spi-sc18is602.c
index dd9896423f0b..9eda21d739c6 100644
--- a/drivers/spi/spi-sc18is602.c
+++ b/drivers/spi/spi-sc18is602.c
@@ -275,7 +275,7 @@ static int sc18is602_probe(struct i2c_client *client,
if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C |
I2C_FUNC_SMBUS_WRITE_BYTE_DATA))
- return -ENODEV;
+ return -EINVAL;
master = spi_alloc_master(dev, sizeof(struct sc18is602));
if (!master)