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x86/dumpstack: Remove unneeded check in dump_trace()

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Smatch complains that we have some inconsistent NULL checking.

If "task" were NULL then it would lead to a NULL dereference
later. We can remove this test because earlier on in the
function we have:

 if (!task)
	task = current;

Signed-off-by: Dan Carpenter <[email protected]>
Acked-by: Frederic Weisbecker <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Clemens Ladisch <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
This commit is contained in:
Dan Carpenter authored and Ingo Molnar committed 2012-01-28 13:09:06 +01:00
1 parent e050e3f0a7
commit d0caf29250
1 file changed
+1 -1
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arch/x86/kernel/dumpstack_64.c
+1 -1
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@@ -129,7 +129,7 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
if (!stack) {
if (regs)
stack = (unsigned long *)regs->sp;
else if (task && task != current)
else if (task != current)
stack = (unsigned long *)task->thread.sp;
else
stack = &dummy;