| Message ID | 20181026004512.31012-3-matheus.bernardino@usp.br (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | staging:iio:ad2s90: Add scale info and improve error handling | expand |
diff --git a/drivers/staging/iio/resolver/ad2s90.c b/drivers/staging/iio/resolver/ad2s90.c index 11fac9f90148..d6a42e3f1bd8 100644 --- a/drivers/staging/iio/resolver/ad2s90.c +++ b/drivers/staging/iio/resolver/ad2s90.c @@ -88,7 +88,12 @@ static int ad2s90_probe(struct spi_device *spi) /* need 600ns between CS and the first falling edge of SCLK */ spi->max_speed_hz = 830000; spi->mode = SPI_MODE_3; - spi_setup(spi); + ret = spi_setup(spi); + + if (ret < 0) { + dev_err(&spi->dev, "spi_setup failed!\n"); + return ret; + } return 0; }
Previously, ad2s90_probe ignored the return code from spi_setup, not handling its possible failure. This patch makes ad2s90_probe check if the code is an error code and, if so, do the following: - Call dev_err with an appropriate error message. - Return the spi_setup's error code, aborting the execution of the rest of the function. Signed-off-by: Matheus Tavares <matheus.bernardino@usp.br> --- drivers/staging/iio/resolver/ad2s90.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)