From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Date: Sun, 13 Apr 2025 10:34:25 +0000 (+0100)
Subject: iio: adc: ad7768-1: Fix insufficient alignment of timestamp.
X-Git-Tag: v6.15-rc6~11^2~2^2~6
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=ffbc26bc91c1f1eb3dcf5d8776e74cbae21ee13a;p=thirdparty%2Flinux.git

iio: adc: ad7768-1: Fix insufficient alignment of timestamp.

On architectures where an s64 is not 64-bit aligned, this may result
insufficient alignment of the timestamp and the structure being too small.
Use aligned_s64 to force the alignment.

Fixes: a1caeebab07e ("iio: adc: ad7768-1: Fix too small buffer passed to iio_push_to_buffers_with_timestamp()") # aligned_s64 newer
Reported-by: David Lechner <dlechner@baylibre.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Reviewed-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20250413103443.2420727-3-jic23@kernel.org
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
---

diff --git a/drivers/iio/adc/ad7768-1.c b/drivers/iio/adc/ad7768-1.c
index 5a863005aca6d..5e0be36af0c5c 100644
--- a/drivers/iio/adc/ad7768-1.c
+++ b/drivers/iio/adc/ad7768-1.c
@@ -168,7 +168,7 @@ struct ad7768_state {
 	union {
 		struct {
 			__be32 chan;
-			s64 timestamp;
+			aligned_s64 timestamp;
 		} scan;
 		__be32 d32;
 		u8 d8[2];