Hello everyone,
My name is Shaobo He and I am a graduate student at University of Utah. I am
using a static analysis tool to search for null pointer dereferences and came
across a potentially invalid memory access in the file
drivers/gpu/drm/i915/intel_crt.c: in function `intel_crt_detect_ddc`, function
`intel_gmbus_get_adapter` can return a NULL pointer which is dereferenced by the
call to `drm_get_edid` or `intel_gmbus_is_forced_bit`. It seems that the return
value of `intel_gmbus_get_adapter` is never NULL-checked. If so, it would be
better to replace the branch to return a NULL pointer with something like `BUG_ON`.
Please let me know if it makes sense. I am looking forward to your reply.
Best,
Shaobo
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