x86, intel_cacheinfo: fix use-after-free cache_kobject
This avoids calling kobject_uevent() with cache_kobject that has already been deallocated in an error path. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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2b7207a6b5
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8b2b9c1af0
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@ -780,15 +780,14 @@ static int __cpuinit cache_add_dev(struct sys_device * sys_dev)
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}
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kobject_put(per_cpu(cache_kobject, cpu));
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cpuid4_cache_sysfs_exit(cpu);
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break;
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return retval;
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}
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kobject_uevent(&(this_object->kobj), KOBJ_ADD);
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}
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if (!retval)
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cpu_set(cpu, cache_dev_map);
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cpu_set(cpu, cache_dev_map);
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kobject_uevent(per_cpu(cache_kobject, cpu), KOBJ_ADD);
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return retval;
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return 0;
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}
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static void __cpuinit cache_remove_dev(struct sys_device * sys_dev)
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