This is a note to let you know that I've just added the patch titled
iio: mxs-lradc: Remove useless check in read_raw
to the 3.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
iio-mxs-lradc-remove-useless-check-in-read_raw.patch
and it can be found in the queue-3.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 2a961d0995cdadbfba565b28beada59c5ae7ebae Mon Sep 17 00:00:00 2001
From: Marek Vasut <marex@xxxxxxx>
Date: Wed, 3 Jul 2013 22:25:00 +0100
Subject: iio: mxs-lradc: Remove useless check in read_raw
From: Marek Vasut <marex@xxxxxxx>
commit 2a961d0995cdadbfba565b28beada59c5ae7ebae upstream.
The removed check in the read_raw implementation was always true,
therefore remove it. This also fixes a bug, by closely inspecting
the code, one can notice the iio_validate_scan_mask_onehot() will
always return 1 and therefore the subsequent condition will always
succeed, therefore making the mxs_lradc_read_raw() function always
return -EINVAL; .
Signed-off-by: Marek Vasut <marex@xxxxxxx>
Tested-by: Otavio Salvador <otavio@xxxxxxxxxxxxxxxx>
Acked-by: Hector Palacios <hector.palacios@xxxxxxxx>
Signed-off-by: Jonathan Cameron <jic23@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/staging/iio/adc/mxs-lradc.c | 7 -------
1 file changed, 7 deletions(-)
--- a/drivers/staging/iio/adc/mxs-lradc.c
+++ b/drivers/staging/iio/adc/mxs-lradc.c
@@ -234,7 +234,6 @@ static int mxs_lradc_read_raw(struct iio
{
struct mxs_lradc *lradc = iio_priv(iio_dev);
int ret;
- unsigned long mask;
if (m != IIO_CHAN_INFO_RAW)
return -EINVAL;
@@ -243,12 +242,6 @@ static int mxs_lradc_read_raw(struct iio
if (chan->channel > LRADC_MAX_TOTAL_CHANS)
return -EINVAL;
- /* Validate the channel if it doesn't intersect with reserved chans. */
- bitmap_set(&mask, chan->channel, 1);
- ret = iio_validate_scan_mask_onehot(iio_dev, &mask);
- if (ret)
- return -EINVAL;
-
/*
* See if there is no buffered operation in progess. If there is, simply
* bail out. This can be improved to support both buffered and raw IO at
Patches currently in stable-queue which might be from marex@xxxxxxx are
queue-3.10/iio-mxs-lradc-remove-useless-check-in-read_raw.patch
queue-3.10/iio-mxs-lradc-fix-misuse-of-iio-trig.patch
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