This is a note to let you know that I've just added the patch titled
iio: proximity: sx9500: claim direct mode during raw proximity reads
to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...
The filename of the patch is: iio-proximity-sx9500-claim-direct-mode-during-raw-proximity-reads.patch and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.
From foo@baz Thu Nov 9 09:48:01 CET 2017
From: Alison Schofield amsfield22@gmail.com Date: Fri, 20 Jan 2017 14:11:30 -0800 Subject: iio: proximity: sx9500: claim direct mode during raw proximity reads
From: Alison Schofield amsfield22@gmail.com
[ Upstream commit 6b2e7589b82ff534dd5c6d67dd83c53f13691bec ]
Driver was checking for direct mode but not locking it. Use the claim/release helper functions to guarantee the device stays in direct mode during raw reads of proximity data.
Signed-off-by: Alison Schofield amsfield22@gmail.com Reviewed-by: Vlad Dogaru ddvlad@gmail.com Signed-off-by: Jonathan Cameron jic23@kernel.org Signed-off-by: Sasha Levin alexander.levin@verizon.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/iio/proximity/sx9500.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-)
--- a/drivers/iio/proximity/sx9500.c +++ b/drivers/iio/proximity/sx9500.c @@ -387,14 +387,18 @@ static int sx9500_read_raw(struct iio_de int *val, int *val2, long mask) { struct sx9500_data *data = iio_priv(indio_dev); + int ret;
switch (chan->type) { case IIO_PROXIMITY: switch (mask) { case IIO_CHAN_INFO_RAW: - if (iio_buffer_enabled(indio_dev)) - return -EBUSY; - return sx9500_read_proximity(data, chan, val); + ret = iio_device_claim_direct_mode(indio_dev); + if (ret) + return ret; + ret = sx9500_read_proximity(data, chan, val); + iio_device_release_direct_mode(indio_dev); + return ret; case IIO_CHAN_INFO_SAMP_FREQ: return sx9500_read_samp_freq(data, val, val2); default:
Patches currently in stable-queue which might be from amsfield22@gmail.com are
queue-4.9/iio-pressure-ms5611-claim-direct-mode-during-oversampling-changes.patch queue-4.9/iio-proximity-sx9500-claim-direct-mode-during-raw-proximity-reads.patch queue-4.9/iio-magnetometer-mag3110-claim-direct-mode-during-raw-writes.patch queue-4.9/iio-trigger-free-trigger-resource-correctly.patch