x86: cache_info: Remove bogus free of amd_l3_cache data
free_cache_attributes() kfree's:
per_cpu(ici_cpuid4_info, cpu)->l3
which is a pointer to memory which was allocated as a block in
amd_init_l3_cache(). l3 of a particular cpu points to a part of this
memory blob. The part and the rest of the blob are still referenced by
other cpus.
As far as I can tell from the git history this is a leftover from the
conversion from per cpu to node data with commit ba06edb63(x86,
cacheinfo: Make L3 cache info per node) and the following commit
f658bcfb2(x86, cacheinfo: Cleanup L3 cache index disable support)
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Hans Rosenfeld <hans.rosenfeld@amd.com>
Cc: Borislav Petkov <borislav.petkov@amd.com>
Cc: Andreas Herrmann <andreas.herrmann3@amd.com>
Cc: Mike Travis <travis@sgi.com>
Link: http://lkml.kernel.org/r/20110723212626.550539989@linutronix.de
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/x86/kernel/cpu/intel_cacheinfo.c b/arch/x86/kernel/cpu/intel_cacheinfo.c
index c105c53..aa27c38 100644
--- a/arch/x86/kernel/cpu/intel_cacheinfo.c
+++ b/arch/x86/kernel/cpu/intel_cacheinfo.c
@@ -820,7 +820,6 @@
for (i = 0; i < num_cache_leaves; i++)
cache_remove_shared_cpu_map(cpu, i);
- kfree(per_cpu(ici_cpuid4_info, cpu)->l3);
kfree(per_cpu(ici_cpuid4_info, cpu));
per_cpu(ici_cpuid4_info, cpu) = NULL;
}