[14/21] Staging: android: binder: Dont call dump_stack in binder_vma_open

From: Greg KH
Date: Fri Feb 10 2012 - 17:55:28 EST


2.6.32-longterm review patch. If anyone has any objections, please let me know.

------------------

From: Arve Hjønnevåg <arve@xxxxxxxxxxx>

commit 3c1b86f17068cf6476fb2d022b9c8b44dedea2e5 upstream.

If user-space partially unmaps the driver, binder_vma_open
would dump the kernel stack. This is not a kernel bug however
and will be treated as if the whole area was unmapped once
binder_vma_close gets called.

Signed-off-by: Arve Hjønnevåg <arve@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
drivers/staging/android/binder.c | 1 -
1 file changed, 1 deletion(-)

--- a/drivers/staging/android/binder.c
+++ b/drivers/staging/android/binder.c
@@ -2741,7 +2741,6 @@ static void binder_vma_open(struct vm_ar
proc->pid, vma->vm_start, vma->vm_end,
(vma->vm_end - vma->vm_start) / SZ_1K, vma->vm_flags,
(unsigned long)pgprot_val(vma->vm_page_prot));
- dump_stack();
}

static void binder_vma_close(struct vm_area_struct *vma)


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