[PATCH V2] drm/sched: fix fence reference count leak

[Markus Elfring]

…
> fence callback add fails.

                     failed?


> To fix this, we should decrement the reference count of prev when
…

See also:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/submitting-patches.rst?h=v6.14-rc4#n94


> v2:

Patch version descriptions may be specified behind the marker line.
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/submitting-patches.rst?h=v6.14-rc4#n763

Regards,
Markus