RISC-V: perf: fix resource cleanup on driver probe failure

Sashiko pointed out various UAF and memory leak issues around
pmu_sbi_device_probe() error paths.

If the probe fails, here are list of cleanups needed.
a. Already registered pmu must be freed
b. per cpu IRQ must be released
c. pmu_ctr_list data structure must be freed
d. cpu hotplug state must be cleaned up only if added.

Fix the resource cleanup by reorganizing the code around probe failure.

Reported-by: Sashiko AI <sashiko-bot@kernel.org>
Reviewed-by: Charlie Jenkins <thecharlesjenkins@gmail.com>
Signed-off-by: Atish Patra <atishp@meta.com>
Link: https://patch.msgid.link/20260807-counter_delegation-v9-1-58658104e487@meta.com
Signed-off-by: Paul Walmsley <pjw@kernel.org>

0 files changed, 0 insertions, 0 deletions