diff options
| -rw-r--r-- | arch/x86/kernel/cpu/intel_rdt_pseudo_lock.c | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/arch/x86/kernel/cpu/intel_rdt_pseudo_lock.c b/arch/x86/kernel/cpu/intel_rdt_pseudo_lock.c index 1860ec10302d..8fd79c281ee6 100644 --- a/arch/x86/kernel/cpu/intel_rdt_pseudo_lock.c +++ b/arch/x86/kernel/cpu/intel_rdt_pseudo_lock.c @@ -290,6 +290,7 @@ static void pseudo_lock_region_clear(struct pseudo_lock_region *plr) static int pseudo_lock_region_init(struct pseudo_lock_region *plr) { struct cpu_cacheinfo *ci; + int ret; int i; /* Pick the first cpu we find that is associated with the cache. */ @@ -298,7 +299,8 @@ static int pseudo_lock_region_init(struct pseudo_lock_region *plr) if (!cpu_online(plr->cpu)) { rdt_last_cmd_printf("cpu %u associated with cache not online\n", plr->cpu); - return -ENODEV; + ret = -ENODEV; + goto out_region; } ci = get_cpu_cacheinfo(plr->cpu); @@ -312,8 +314,11 @@ static int pseudo_lock_region_init(struct pseudo_lock_region *plr) } } + ret = -1; rdt_last_cmd_puts("unable to determine cache line size\n"); - return -1; +out_region: + pseudo_lock_region_clear(plr); + return ret; } /** @@ -365,16 +370,23 @@ static int pseudo_lock_region_alloc(struct pseudo_lock_region *plr) */ if (plr->size > KMALLOC_MAX_SIZE) { rdt_last_cmd_puts("requested region exceeds maximum size\n"); - return -E2BIG; + ret = -E2BIG; + goto out_region; } plr->kmem = kzalloc(plr->size, GFP_KERNEL); if (!plr->kmem) { rdt_last_cmd_puts("unable to allocate memory\n"); - return -ENOMEM; + ret = -ENOMEM; + goto out_region; } - return 0; + ret = 0; + goto out; +out_region: + pseudo_lock_region_clear(plr); +out: + return ret; } /** |