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Blackfin arch: Fixing Bug: balance calls to get_task_mm with corresponding mmput...
author
Bernd Schmidt
<bernd.schmidt@analog.com>
Sun, 21 Oct 2007 14:32:27 +0000
(22:32 +0800)
committer
Bryan Wu
<bryan.wu@analog.com>
Sun, 21 Oct 2007 14:32:27 +0000
(22:32 +0800)
We must balance calls to get_task_mm with corresponding mmput calls, otherwise
refcounting is screwed up and mms don't get freed when their task exits.
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
arch/blackfin/kernel/traps.c
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diff --git
a/arch/blackfin/kernel/traps.c
b/arch/blackfin/kernel/traps.c
index 8823e9ade5849b02968442e158990e3c02ade6c6..afd044e78af677ce483fe919408fd5cb98046bb3 100644
(file)
--- a/
arch/blackfin/kernel/traps.c
+++ b/
arch/blackfin/kernel/traps.c
@@
-118,12
+118,14
@@
static int printk_address(unsigned long address)
offset = (address - vma->vm_start) + (vma->vm_pgoff << PAGE_SHIFT);
write_unlock_irq(&tasklist_lock);
+ mmput(mm);
return printk("<0x%p> [ %s + 0x%lx ]",
(void *)address, name, offset);
}
vml = vml->next;
}
+ mmput(mm);
}
write_unlock_irq(&tasklist_lock);