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Subject: FAILED: patch "[PATCH] iio: gyro: adis16260: fix division by zero in write_raw" failed to apply to 6.6-stable tree
To: antoniu.miclaus@analog.com,Jonathan.Cameron@huawei.com,Stable@vger.kernel.org,nuno.sa@analog.com
Cc: <stable@vger.kernel.org>
From: <gregkh@linuxfoundation.org>
Date: Thu, 04 Jun 2026 10:45:52 +0200
Message-ID: <2026060452-maturing-stimulate-cb92@gregkh>
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The patch below does not apply to the 6.6-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@vger.kernel.org>.

To reproduce the conflict and resubmit, you may use the following commands:

git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.6.y
git checkout FETCH_HEAD
git cherry-pick -x 761e8b489e6cf166c574034b70637f8a7eadd0ee
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable@vger.kernel.org>' --in-reply-to '2026060452-maturing-stimulate-cb92@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^..

Possible dependencies:



thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From 761e8b489e6cf166c574034b70637f8a7eadd0ee Mon Sep 17 00:00:00 2001
From: Antoniu Miclaus <antoniu.miclaus@analog.com>
Date: Tue, 31 Mar 2026 13:13:00 +0300
Subject: [PATCH] iio: gyro: adis16260: fix division by zero in write_raw
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Add a validation check for the sampling frequency value before using it
as a divisor. A user writing zero to the sampling_frequency sysfs
attribute triggers a division by zero in the kernel.

Fixes: 089a41985c6c ("staging: iio: adis16260 digital gyro driver")
Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/gyro/adis16260.c b/drivers/iio/gyro/adis16260.c
index 586e6cfa14a9..91b9c5f18ec4 100644
--- a/drivers/iio/gyro/adis16260.c
+++ b/drivers/iio/gyro/adis16260.c
@@ -287,6 +287,9 @@ static int adis16260_write_raw(struct iio_dev *indio_dev,
 		addr = adis16260_addresses[chan->scan_index][1];
 		return adis_write_reg_16(adis, addr, val);
 	case IIO_CHAN_INFO_SAMP_FREQ:
+		if (val <= 0)
+			return -EINVAL;
+
 		if (spi_get_device_id(adis->spi)->driver_data)
 			t = 256 / val;
 		else