target/linux/generic/backport-4.19/505-v5.1-iio-chemical-sps30-Supress-some-switch-fallthrough-w.patch

   1 From 59b9bb0abca9efe47207301dbaf0d1beee2bd0f7 Mon Sep 17 00:00:00 2001
   2 From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
   3 Date: Sat, 9 Feb 2019 19:32:58 +0000
   4 Subject: [PATCH] iio:chemical:sps30 Supress some switch fallthrough warnings.
   5
   6 Fixes warnings reported on linux-next but marking one path
   7 and adding an explicit return in the other.
   8
   9 Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
  10 Cc: Andreas Brauchli <a.brauchli@elementarea.net>
  11 Acked-by: Tomasz Duszynski <tduszyns@gmail.com>
  12 ---
  13  drivers/iio/chemical/sps30.c | 3 +++
  14  1 file changed, 3 insertions(+)
  15
  16 diff --git a/drivers/iio/chemical/sps30.c b/drivers/iio/chemical/sps30.c
  17 index 375df5060ed5..edbb956e81e8 100644
  18 --- a/drivers/iio/chemical/sps30.c
  19 +++ b/drivers/iio/chemical/sps30.c
  20 @@ -118,6 +118,7 @@ static int sps30_do_cmd(struct sps30_state *state, u16 cmd, u8 *data, int size)
  21         case SPS30_READ_AUTO_CLEANING_PERIOD:
  22                 buf[0] = SPS30_AUTO_CLEANING_PERIOD >> 8;
  23                 buf[1] = (u8)SPS30_AUTO_CLEANING_PERIOD;
  24 +               /* fall through */
  25         case SPS30_READ_DATA_READY_FLAG:
  26         case SPS30_READ_DATA:
  27         case SPS30_READ_SERIAL:
  28 @@ -295,6 +296,8 @@ static int sps30_read_raw(struct iio_dev *indio_dev,
  29                                 *val2 = 10000;
  30
  31                                 return IIO_VAL_INT_PLUS_MICRO;
  32 +                       default:
  33 +                               return -EINVAL;
  34                         }
  35                 default:
  36                         return -EINVAL;