From ed8e443feee2bde8539f865092289eeaf0681c3f Mon Sep 17 00:00:00 2001 From: Anju T Sudhakar Date: Mon, 11 Dec 2017 11:28:36 +0530 Subject: [PATCH] powerpc/perf: IMC code cleanup with some code refactoring Factor out memory freeing part for attribute elements from imc_common_cpuhp_mem_free(). Signed-off-by: Anju T Sudhakar Reviewed-by: Madhavan Srinivasan Signed-off-by: Michael Ellerman --- arch/powerpc/perf/imc-pmu.c | 33 +++++++++++++++++++++------------ 1 file changed, 21 insertions(+), 12 deletions(-) diff --git a/arch/powerpc/perf/imc-pmu.c b/arch/powerpc/perf/imc-pmu.c index 2a7b9323183a..9db2529df3ed 100644 --- a/arch/powerpc/perf/imc-pmu.c +++ b/arch/powerpc/perf/imc-pmu.c @@ -1157,6 +1157,16 @@ static void cleanup_all_thread_imc_memory(void) } } +/* Function to free the attr_groups which are dynamically allocated */ +static void imc_common_mem_free(struct imc_pmu *pmu_ptr) +{ + if (pmu_ptr->attr_groups[IMC_EVENT_ATTR]) + kfree(pmu_ptr->attr_groups[IMC_EVENT_ATTR]->attrs); + kfree(pmu_ptr->attr_groups[IMC_EVENT_ATTR]); + kfree(pmu_ptr); + kfree(per_nest_pmu_arr); +} + /* * Common function to unregister cpu hotplug callback and * free the memory. @@ -1188,14 +1198,6 @@ static void imc_common_cpuhp_mem_free(struct imc_pmu *pmu_ptr) cpuhp_remove_state(CPUHP_AP_PERF_POWERPC_THREAD_IMC_ONLINE); cleanup_all_thread_imc_memory(); } - - /* Only free the attr_groups which are dynamically allocated */ - if (pmu_ptr->attr_groups[IMC_EVENT_ATTR]) - kfree(pmu_ptr->attr_groups[IMC_EVENT_ATTR]->attrs); - kfree(pmu_ptr->attr_groups[IMC_EVENT_ATTR]); - kfree(pmu_ptr); - kfree(per_nest_pmu_arr); - return; } @@ -1244,8 +1246,10 @@ static int imc_mem_init(struct imc_pmu *pmu_ptr, struct device_node *parent, core_imc_refc = kcalloc(nr_cores, sizeof(struct imc_pmu_ref), GFP_KERNEL); - if (!core_imc_refc) + if (!core_imc_refc) { + kfree(pmu_ptr->mem_info); return -ENOMEM; + } core_imc_pmu = pmu_ptr; break; @@ -1258,8 +1262,10 @@ static int imc_mem_init(struct imc_pmu *pmu_ptr, struct device_node *parent, thread_imc_mem_size = pmu_ptr->counter_mem_size; for_each_online_cpu(cpu) { res = thread_imc_mem_alloc(cpu, pmu_ptr->counter_mem_size); - if (res) + if (res) { + cleanup_all_thread_imc_memory(); return res; + } } break; @@ -1285,8 +1291,10 @@ int init_imc_pmu(struct device_node *parent, struct imc_pmu *pmu_ptr, int pmu_id int ret; ret = imc_mem_init(pmu_ptr, parent, pmu_idx); - if (ret) - goto err_free; + if (ret) { + imc_common_mem_free(pmu_ptr); + return ret; + } switch (pmu_ptr->domain) { case IMC_DOMAIN_NEST: @@ -1351,6 +1359,7 @@ int init_imc_pmu(struct device_node *parent, struct imc_pmu *pmu_ptr, int pmu_id return 0; err_free: + imc_common_mem_free(pmu_ptr); imc_common_cpuhp_mem_free(pmu_ptr); return ret; }