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| author | Haojie Li <lihaojie@kylinos.cn> | 2026-08-25 18:08:45 +0800 |
|---|---|---|
| committer | Chun-Kuang Hu <chunkuang.hu@kernel.org> | 2026-09-28 23:20:55 +0000 |
| commit | bce7698e2e6565bb765bd0522337f29f5f312624 (patch) | |
| tree | 0b735b7b4a27369cb4d75d9431b3ee59ce7e5bcc /Documentation/admin-guide/media/c3-isp.dot | |
| download | linux-stable-bce7698e2e6565bb765bd0522337f29f5f312624.tar.gz linux-stable-bce7698e2e6565bb765bd0522337f29f5f312624.zip | |
drm/mediatek: Add missing IS_ERR check for ovl_adaptor platform devicegrafted
platform_device_register_data() can fail and return an ERR_PTR, but the
return value is used without checking, leading to an invalid pointer
being stored in ddp_comp[].dev and passed to component_match_add() and
mtk_ddp_comp_init(), which could result in a kernel crash.
Add an IS_ERR() check to jump to the error handling path on failure.
Fixes: 0d9eee9118b7 ("drm/mediatek: Add drm ovl_adaptor sub driver for MT8195")
Cc: stable@vger.kernel.org
Signed-off-by: Haojie Li <lihaojie@kylinos.cn>
Reviewed-by: CK Hu <ck.hu@mediatek.com>
Link: https://patchwork.kernel.org/project/linux-mediatek/patch/20260825100845.438893-1-lihaojie@kylinos.cn/
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Diffstat (limited to 'Documentation/admin-guide/media/c3-isp.dot')
| -rw-r--r-- | Documentation/admin-guide/media/c3-isp.dot | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/Documentation/admin-guide/media/c3-isp.dot b/Documentation/admin-guide/media/c3-isp.dot new file mode 100644 index 000000000..42dc931ee --- /dev/null +++ b/Documentation/admin-guide/media/c3-isp.dot @@ -0,0 +1,26 @@ +digraph board { + rankdir=TB + n00000001 [label="{{<port0> 0 | <port1> 1} | c3-isp-core\n/dev/v4l-subdev0 | {<port2> 2 | <port3> 3 | <port4> 4 | <port5> 5}}", shape=Mrecord, style=filled, fillcolor=green] + n00000001:port3 -> n00000008:port0 + n00000001:port4 -> n0000000b:port0 + n00000001:port5 -> n0000000e:port0 + n00000001:port2 -> n00000027 + n00000008 [label="{{<port0> 0} | c3-isp-resizer0\n/dev/v4l-subdev1 | {<port1> 1}}", shape=Mrecord, style=filled, fillcolor=green] + n00000008:port1 -> n00000016 [style=bold] + n0000000b [label="{{<port0> 0} | c3-isp-resizer1\n/dev/v4l-subdev2 | {<port1> 1}}", shape=Mrecord, style=filled, fillcolor=green] + n0000000b:port1 -> n0000001a [style=bold] + n0000000e [label="{{<port0> 0} | c3-isp-resizer2\n/dev/v4l-subdev3 | {<port1> 1}}", shape=Mrecord, style=filled, fillcolor=green] + n0000000e:port1 -> n00000023 [style=bold] + n00000011 [label="{{<port0> 0} | c3-mipi-adapter\n/dev/v4l-subdev4 | {<port1> 1}}", shape=Mrecord, style=filled, fillcolor=green] + n00000011:port1 -> n00000001:port0 [style=bold] + n00000016 [label="c3-isp-cap0\n/dev/video0", shape=box, style=filled, fillcolor=yellow] + n0000001a [label="c3-isp-cap1\n/dev/video1", shape=box, style=filled, fillcolor=yellow] + n0000001e [label="{{<port0> 0} | c3-mipi-csi2\n/dev/v4l-subdev5 | {<port1> 1}}", shape=Mrecord, style=filled, fillcolor=green] + n0000001e:port1 -> n00000011:port0 [style=bold] + n00000023 [label="c3-isp-cap2\n/dev/video2", shape=box, style=filled, fillcolor=yellow] + n00000027 [label="c3-isp-stats\n/dev/video3", shape=box, style=filled, fillcolor=yellow] + n0000002b [label="c3-isp-params\n/dev/video4", shape=box, style=filled, fillcolor=yellow] + n0000002b -> n00000001:port1 + n0000003f [label="{{} | imx290 2-001a\n/dev/v4l-subdev6 | {<port0> 0}}", shape=Mrecord, style=filled, fillcolor=green] + n0000003f:port0 -> n0000001e:port0 [style=bold] +} |