x86: fix oprofile double free

Chuck reports that the recent fix from Andi to oprofile
6c977aad03a18019015035958c65b6729cd0574c introduces a double free.  Each
cpu's cpu_msrs is setup to point to cpu 0's, which causes free_msrs to free
cpu 0's pointers for_each_possible_cpu.  Rather than copy the pointers, do
a deep copy instead.

[[email protected]: allocate_msrs() was using for_each_online_cpu()]
Signed-off-by: Chris Wright <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Alan Cox <[email protected]>
Cc: Dave Jones <[email protected]>
Cc: Chuck Ebbert <[email protected]>
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

0 files changed, 0 insertions, 0 deletions