drm/amd/display: bios_parser: fix GPIO I2C line off-by-one

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get_gpio_i2c_info() computes the number of GPIO I2C assignment records
present in the BIOS table and then uses bfI2C_LineMux as an array index
into header->asGPIO_Info[]. The current check only rejects values
strictly larger than the record count, so an index equal to count still
falls through and reaches the fixed table one element past the end.

Reject indices at or above the number of available records before using
them as an array index.

Signed-off-by: Pengpeng Hou <pengpeng@iscas.ac.cn>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Pengpeng Hou 2026-03-24 16:51:30 +08:00 • committed by Alex Deucher

parent 31b8de5e55

commit 12fa1fd6df

1 changed files with 1 additions and 1 deletions

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drivers/gpu/drm/amd/display/dc/bios/bios_parser.c

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