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authorSakari Ailus <sakari.ailus@linux.intel.com>2020-10-08 22:06:28 +0300
committerMauro Carvalho Chehab <mchehab+huawei@kernel.org>2020-11-16 12:31:14 +0300
commit8160e86702e0807bd36d40f82648f9f9820b9d5a (patch)
tree884cd66c808ccf6d71711a8efc8a789d7d1a763e /drivers/media/pci
parentdb8e94e7cf27d8bc101ef5b8ee5c1af77cd5b1c9 (diff)
downloadlinux-8160e86702e0807bd36d40f82648f9f9820b9d5a.tar.xz
media: ipu3-cio2: Return actual subdev format
Return actual subdev format on ipu3-cio2 subdev pads. The earlier implementation was based on an infinite recursion that exhausted the stack. Reported-by: Tsuchiya Yuto <kitakar@gmail.com> Fixes: c2a6a07afe4a ("media: intel-ipu3: cio2: add new MIPI-CSI2 driver") Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Bingbu Cao <bingbu.cao@intel.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Cc: stable@vger.kernel.org # v4.16 and up Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Diffstat (limited to 'drivers/media/pci')
-rw-r--r--drivers/media/pci/intel/ipu3/ipu3-cio2.c24
1 files changed, 3 insertions, 21 deletions
diff --git a/drivers/media/pci/intel/ipu3/ipu3-cio2.c b/drivers/media/pci/intel/ipu3/ipu3-cio2.c
index 4e598e937dfe..afa472026ba4 100644
--- a/drivers/media/pci/intel/ipu3/ipu3-cio2.c
+++ b/drivers/media/pci/intel/ipu3/ipu3-cio2.c
@@ -1232,29 +1232,11 @@ static int cio2_subdev_get_fmt(struct v4l2_subdev *sd,
struct v4l2_subdev_format *fmt)
{
struct cio2_queue *q = container_of(sd, struct cio2_queue, subdev);
- struct v4l2_subdev_format format;
- int ret;
- if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
+ if (fmt->which == V4L2_SUBDEV_FORMAT_TRY)
fmt->format = *v4l2_subdev_get_try_format(sd, cfg, fmt->pad);
- return 0;
- }
-
- if (fmt->pad == CIO2_PAD_SINK) {
- format.which = V4L2_SUBDEV_FORMAT_ACTIVE;
- ret = v4l2_subdev_call(sd, pad, get_fmt, NULL,
- &format);
-
- if (ret)
- return ret;
- /* update colorspace etc */
- q->subdev_fmt.colorspace = format.format.colorspace;
- q->subdev_fmt.ycbcr_enc = format.format.ycbcr_enc;
- q->subdev_fmt.quantization = format.format.quantization;
- q->subdev_fmt.xfer_func = format.format.xfer_func;
- }
-
- fmt->format = q->subdev_fmt;
+ else
+ fmt->format = q->subdev_fmt;
return 0;
}