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drm/bridge: anx7625: Fix overflow issue on reading EDID
[ Upstream commitd5c6f647ae
] The length of EDID block can be longer than 256 bytes, so we should use `int` instead of `u8` for the `edid_pos` variable. Fixes:8bdfc5dae4
("drm/bridge: anx7625: Add anx7625 MIPI DSI/DPI to DP") Signed-off-by: Pin-Yen Lin <treapking@chromium.org> Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com> Signed-off-by: Robert Foss <robert.foss@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20220210103827.402436-1-treapking@chromium.org Signed-off-by: Sasha Levin <sashal@kernel.org>
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1 changed files with 2 additions and 1 deletions
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@ -791,7 +791,8 @@ static int segments_edid_read(struct anx7625_data *ctx,
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static int sp_tx_edid_read(struct anx7625_data *ctx,
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u8 *pedid_blocks_buf)
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{
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u8 offset, edid_pos;
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u8 offset;
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int edid_pos;
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int count, blocks_num;
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u8 pblock_buf[MAX_DPCD_BUFFER_SIZE];
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u8 i, j;
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