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>
[ Adjust context ]
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 76b334dc5fbf359b9cb1b10b1d3f292242f15c57..dfeaa786b148c0b7d7781a678fa0bd28891f8b86 100644 (file)
--- a/drivers/iio/light/as73211.c
+++ b/drivers/iio/light/as73211.c
@@ -574,7 +574,7 @@ static irqreturn_t as73211_trigger_handler(int irq __always_unused, void *p)
        struct {
                __le16 chan[4];
                s64 ts __aligned(8);
-       } scan;
+       } scan = { };
        int data_result, ret;
 
        mutex_lock(&data->mutex);