Messages in this thread Patch in this message | | | From | Matheus Tavares <> | Subject | [PATCH 2/6] staging:iio:ad2s90: Make probe handle spi_setup failure | Date | Thu, 25 Oct 2018 21:45:08 -0300 |
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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(-)
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; } -- 2.18.0
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