Out of tdata_disc_grp

I am using rockpi 4c plus and installed Ubuntu 20.04 LTS (GNU/Linux 4.4.194-11-rk3399-rockchip-g1bb08d49cc40 aarch64).

when I do journalctl -n 20 I get the following error log:

May 12 15:47:07 rock-4c-plus kernel: _tdata_psh_info_pool_deq 201: Out of tdata_disc_grp
May 12 15:47:07 rock-4c-plus kernel: dhd_tcpdata_info_get 1047: No more free tdata_psh_info!!
May 12 15:47:16 rock-4c-plus kernel: _tdata_psh_info_pool_deq 201: Out of tdata_disc_grp
May 12 15:47:16 rock-4c-plus kernel: dhd_tcpdata_info_get 1047: No more free tdata_psh_info!!
May 12 15:47:16 rock-4c-plus kernel: _tdata_psh_info_pool_deq 201: Out of tdata_disc_grp
May 12 15:47:16 rock-4c-plus kernel: dhd_tcpdata_info_get 1047: No more free tdata_psh_info!!
May 12 15:47:16 rock-4c-plus kernel: _tdata_psh_info_pool_deq 201: Out of tdata_disc_grp
May 12 15:47:16 rock-4c-plus kernel: dhd_tcpdata_info_get 1047: No more free tdata_psh_info!!
May 12 15:47:18 rock-4c-plus kernel: _tdata_psh_info_pool_deq 201: Out of tdata_disc_grp
May 12 15:47:18 rock-4c-plus kernel: dhd_tcpdata_info_get 1047: No more free tdata_psh_info!!
May 12 15:47:18 rock-4c-plus kernel: _tdata_psh_info_pool_deq 201: Out of tdata_disc_grp
May 12 15:47:18 rock-4c-plus kernel: dhd_tcpdata_info_get 1047: No more free tdata_psh_info!!
May 12 15:47:18 rock-4c-plus kernel: _tdata_psh_info_pool_deq 201: Out of tdata_disc_grp
May 12 15:47:18 rock-4c-plus kernel: dhd_tcpdata_info_get 1047: No more free tdata_psh_info!!
May 12 15:47:18 rock-4c-plus kernel: _tdata_psh_info_pool_deq 201: Out of tdata_disc_grp
May 12 15:47:18 rock-4c-plus kernel: dhd_tcpdata_info_get 1047: No more free tdata_psh_info!!
May 12 15:47:18 rock-4c-plus kernel: _tdata_psh_info_pool_deq 201: Out of tdata_disc_grp
May 12 15:47:18 rock-4c-plus kernel: dhd_tcpdata_info_get 1047: No more free tdata_psh_info!!
May 12 15:47:18 rock-4c-plus kernel: _tdata_psh_info_pool_deq 201: Out of tdata_disc_grp
May 12 15:47:18 rock-4c-plus kernel: dhd_tcpdata_info_get 1047: No more free tdata_psh_info!!

Does anybody have an idea about the problem and how to solve this?