media: atmel: atmel-isc-base: properly initialize pad_cfg

In try_fmt, properly initialize the pad_cfg variable to zeros.
This can be used by various calls from the subdev, so it's better
to have it initialized.
Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
[hverkuil-cisco@xs4all.nl: changed {0} to {}]
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

drivers/media/platform/atmel/atmel-isc-base.c

@@ -1216,7 +1216,7 @@ static int isc_try_fmt(struct isc_device *isc, struct v4l2_format *f,
 	int i;
 	struct isc_format *sd_fmt = NULL, *direct_fmt = NULL;
 	struct v4l2_pix_format *pixfmt = &f->fmt.pix;
-	struct v4l2_subdev_pad_config pad_cfg;
+	struct v4l2_subdev_pad_config pad_cfg = {};
 	struct v4l2_subdev_format format = {
 		.which = V4L2_SUBDEV_FORMAT_TRY,
 	};