clocksource/drivers/riscv: Add required checks during clock source init

Currently, clocksource registration happens for an invalid cpu for
non-smp kernels. This lead to kernel panic as cpu hotplug registration
will fail for those cpus. Moreover, riscv_hartid_to_cpuid can return
errors now.

Do not proceed if hartid or cpuid is invalid. Take this opportunity to
print appropriate error strings for different failure cases.

Signed-off-by: Atish Patra <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
Reviewed-by: Palmer Dabbelt <[email protected]>
Signed-off-by: Daniel Lezcano <[email protected]>

0 files changed, 0 insertions, 0 deletions