Fix inconsistent IS_ERR and PTR_ERR in i915_gem_dmabuf.c
Signed-off-by: NKai Song <songkai01@inspur.com>
Reviewed-by: NMatthew Auld <matthew.auld@intel.com>
Signed-off-by: NMatthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211022120655.22173-1-songkai01@inspur.com