On Thu, 12 Jul 2018 00:15:12 +0200 Lorenzo Bianconi <lorenzo.bianconi@xxxxxxxxxx> wrote: > Add debug info to error conditions in st_lsm6dsx_read_fifo routine > > Suggested-by: Jorge Ramirez-Ortiz <jramirez@xxxxxxxxxxxx> > Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@xxxxxxxxxx> Applied to the togreg branch of iio.git and pushed out as testing for the autobuilders to play with it. Thanks, Jonathan > --- > drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c | 16 +++++++++++++--- > 1 file changed, 13 insertions(+), 3 deletions(-) > > diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c > index 4994f920a836..7589f2ad1dae 100644 > --- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c > +++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c > @@ -298,8 +298,11 @@ static int st_lsm6dsx_read_fifo(struct st_lsm6dsx_hw *hw) > err = regmap_bulk_read(hw->regmap, > hw->settings->fifo_ops.fifo_diff.addr, > &fifo_status, sizeof(fifo_status)); > - if (err < 0) > + if (err < 0) { > + dev_err(hw->dev, "failed to read fifo status (err=%d)\n", > + err); > return err; > + } > > if (fifo_status & cpu_to_le16(ST_LSM6DSX_FIFO_EMPTY_MASK)) > return 0; > @@ -313,8 +316,12 @@ static int st_lsm6dsx_read_fifo(struct st_lsm6dsx_hw *hw) > > for (read_len = 0; read_len < fifo_len; read_len += pattern_len) { > err = st_lsm6dsx_read_block(hw, hw->buff, pattern_len); > - if (err < 0) > + if (err < 0) { > + dev_err(hw->dev, > + "failed to read pattern from fifo (err=%d)\n", > + err); > return err; > + } > > /* > * Data are written to the FIFO with a specific pattern > @@ -385,8 +392,11 @@ static int st_lsm6dsx_read_fifo(struct st_lsm6dsx_hw *hw) > > if (unlikely(reset_ts)) { > err = st_lsm6dsx_reset_hw_ts(hw); > - if (err < 0) > + if (err < 0) { > + dev_err(hw->dev, "failed to reset hw ts (err=%d)\n", > + err); > return err; > + } > } > return read_len; > } -- To unsubscribe from this list: send the line "unsubscribe linux-iio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html