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x86, bts: fix unlock problem in ds.c

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Fix a problem where ds_request() returned an error without releasing the
ds lock.

Reported-by: Stephane Eranian <eranian@gmail.com>
Signed-off-by: Markus Metzger <markus.t.metzger@gmail.com>
Cc: <stable@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Markus Metzger 2008-11-15 11:00:17 +01:00 committed by Ingo Molnar
parent 6cd10f8db3
commit d1f1e9c010
1 changed files with 2 additions and 1 deletions
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3
arch/x86/kernel/ds.c
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@ -384,8 +384,9 @@ static int ds_request(struct task_struct *task, void *base, size_t size,
spin_lock(&ds_lock);
error = -EPERM;
if (!check_tracer(task))
return -EPERM;
goto out_unlock;
error = -ENOMEM;
context = ds_alloc_context(task);