public-mirrors/linux
1
0
Fork 0
mirror of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-11-27 01:11:31 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

staging: iio: isl29018: check if the chip is in a suspended state

Browse source 
Add a check to isl29018_write_raw() to ensure that the chip is not in a
suspended state. This makes the code consistent with what is present
in isl29018_read_raw().

Signed-off-by: Brian Masney <masneyb@onstation.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Brian Masney 2016-09-26 20:20:20 -04:00 • committed by Jonathan Cameron
parent 5611cd6fc6
commit 0005356638
1 changed files with 6 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

7
drivers/staging/iio/light/isl29018.c
View file

@ -355,6 +355,10 @@ static int isl29018_write_raw(struct iio_dev *indio_dev,
int ret = -EINVAL; int ret = -EINVAL;
mutex_lock(&chip->lock); mutex_lock(&chip->lock);
if (chip->suspended) {
ret = -EBUSY;
goto write_done;
}
switch (mask) { switch (mask) {
case IIO_CHAN_INFO_CALIBSCALE: case IIO_CHAN_INFO_CALIBSCALE:
if (chan->type == IIO_LIGHT) { if (chan->type == IIO_LIGHT) {
@ -374,8 +378,9 @@ static int isl29018_write_raw(struct iio_dev *indio_dev,
default: default:
break; break;
} }
mutex_unlock(&chip->lock);
write_done:
mutex_unlock(&chip->lock);
return ret; return ret;
} }