[ Upstream commit 39e912a959c19338855b768eaaee2917d7841f71 ] Since the driver is broken in the case that src->freq_supported is not NULL but src->freq_supported_num is 0, add an assertion for it. Signed-off-by: Jiasheng Jiang <jiashengjiangcool@gmail.com> Reviewed-by: Jiri Pirko <jiri@nvidia.com> Reviewed-by: Vadim Fedorenko <vadim.fedorenko@linux.dev> Reviewed-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com> Link: https://patch.msgid.link/20250228150210.34404-1-jiashengjiangcool@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>