drm/xe/madvise: Remove unreachable madvise_funcs NULL check

The NULL check on madvise_funcs[attr_type] in xe_vm_madvise_ioctl()
is unreachable. madvise_args_are_sane() already validates args->type
via a switch statement whose default case rejects any type not present
in madvise_funcs[]. Every type that passes the sanity check has a
corresponding entry in the table.

Beyond being dead code, the check's error path (goto err_fini) would
also skip xe_svm_notifier_unlock() if it were somehow reached with
has_svm_userptr_vmas set, since err_fini only tears down the drm_exec.
Removing the check eliminates both the redundancy and the latent
unwind hazard.

No functional change.

Assisted-by: LLM
Reviewed-by: Xin Wang <x.wang@intel.com>
Link: https://patch.msgid.link/20260915011229.203424-1-shuicheng.lin@intel.com
Signed-off-by: Shuicheng Lin <shuicheng.lin@intel.com>

0 files changed, 0 insertions, 0 deletions