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When allocations fails that can be NULL now. If the name provided is NULL, then the initialization process of the PMU type and dev will be skipped in function perf_pmu_register(). Consequently, the PMU will not be able to register into the kernel. Moreover, in the case of unregister the PMU, the function device_del() will need to handle NULL pointers, which potentially can cause issues. So move this allocation above the cpuhp_state_add_instance() and directly return if it does fail. Signed-off-by: Junhao He <hejunhao3@huawei.com> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Link: https://lore.kernel.org/r/20230403081423.62460-3-hejunhao3@huawei.com Signed-off-by: Will Deacon <will@kernel.org> |
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| .. | ||
| hisi_pcie_pmu.c | ||
| hisi_uncore_cpa_pmu.c | ||
| hisi_uncore_ddrc_pmu.c | ||
| hisi_uncore_hha_pmu.c | ||
| hisi_uncore_l3c_pmu.c | ||
| hisi_uncore_pa_pmu.c | ||
| hisi_uncore_pmu.c | ||
| hisi_uncore_pmu.h | ||
| hisi_uncore_sllc_pmu.c | ||
| hns3_pmu.c | ||
| Kconfig | ||
| Makefile | ||