Description: drm: Don't unref the same fb many times by mistake due to deadlock handling
References:
Notes:
 carnil> First introducing commit could not be determined.
Bugs:
upstream: released (6.8-rc1) [cb4daf271302d71a6b9a7c01bd0b6d76febd8f0c]
6.7-upstream-stable: released (6.7.3) [bfd0feb1b109cb63b87fdcd00122603787c75a1a]
6.6-upstream-stable: released (6.6.15) [d7afdf360f4ac142832b098b4de974e867cc063c]
6.1-upstream-stable: released (6.1.76) [62f2e79cf9f4f47cc9dea9cebdf58d9f7b5695e0]
5.10-upstream-stable: released (5.10.210) [f55261469be87c55df13db76dc945f6bcd825105]
4.19-upstream-stable: released (4.19.307) [376e21a9e4c2c63ee5d8d3aa74be5082c3882229]
sid: released (6.6.15-1)
6.1-bookworm-security: released (6.1.76-1)
5.10-bullseye-security: needed
4.19-buster-security: pending (4.19.309-1)