iio: light: as73211: Ensure buffer holes are zeroed

[ Upstream commit 433b99e922943efdfd62b9a8e3ad1604838181f2 ]

Given that the buffer is copied to a kfifo that ultimately user space
can read, ensure we zero it.

Fixes: 403e5586b52e ("iio: light: as73211: New driver")
Reviewed-by: Matti Vaittinen <mazziesaccount@gmail.com>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Link: https://patch.msgid.link/20250802164436.515988-2-jic23@kernel.org
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/iio/light/as73211.c b/drivers/iio/light/as73211.c
index 37fffce35dd112099bb2ea3c613b4ee18f5b2770..36f6f2eb53b2cd570455b511a93e08a3d54f0873 100644 (file)
--- a/drivers/iio/light/as73211.c
+++ b/drivers/iio/light/as73211.c
@@ -643,7 +643,7 @@ static irqreturn_t as73211_trigger_handler(int irq __always_unused, void *p)
        struct {
                __le16 chan[4];
                aligned_s64 ts;
-       } scan;
+       } scan = { };
        int data_result, ret;
 
        mutex_lock(&data->mutex);