[ Upstream commit 750cf40c0f7088f36a8a5d102e0488b1ac47faf5 ] On error the function was meant to return -ERRNO. This also fixes compile warning: drivers/soc/fsl/qbman/bman.c:640:6: warning: variable 'err' set but not used [-Wunused-but-set-variable] Fixes: 0505d00c8dba ("soc/fsl/qbman: Cleanup buffer pools if BMan was initialized prior to bootup") Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Li Yang <leoyang.li@nxp.com> Signed-off-by: Sasha Levin <sashal@kernel.org>