Description: drm/amdgpu: Fix the null pointer when load rlc firmware
References:
Notes:
 carnil> Introduced in 3da9b71563cb ("drm/amd: Use `amdgpu_ucode_*` helpers for GFX10").
 carnil> Vulnerable versions: 6.3-rc1.
Bugs:
upstream: released (6.8-rc1) [bc03c02cc1991a066b23e69bbcc0f66e8f1f7453]
6.7-upstream-stable: released (6.7.3) [d3887448486caeef9687fb5dfebd4ff91e0f25aa]
6.6-upstream-stable: released (6.6.15) [8b5bacce2d13dbe648f0bfd3f738ecce8db4978c]
6.1-upstream-stable: N/A "Vulnerable code not present"
5.10-upstream-stable: N/A "Vulnerable code not present"
4.19-upstream-stable: N/A "Vulnerable code not present"
sid: released (6.6.15-1)
6.1-bookworm-security: N/A "Vulnerable code not present"
5.10-bullseye-security: N/A "Vulnerable code not present"
4.19-buster-security: N/A "Vulnerable code not present"