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.bernard...@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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