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Blackfin: do not try displaying the end of the stack

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The end of the stack may not be valid (and that could be OK), so do not
attempt to parse it.  If we do, we might use a bad pointer in kernel space
which makes things panic().

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This commit is contained in:
Sonic Zhang 2009-07-16 10:36:35 +00:00 • committed by Mike Frysinger
parent 2120b68f31
commit 407505dc01
1 changed files with 1 additions and 1 deletions
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2
arch/blackfin/kernel/traps.c
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@ -911,7 +911,7 @@ void show_stack(struct task_struct *task, unsigned long *stack)
frame_no = 0;
for (addr = (unsigned int *)((unsigned int)stack & ~0xF), i = 0;
addr <= endstack; addr++, i++) {
addr < endstack; addr++, i++) {
ret_addr = 0;
if (!j && i % 8 == 0)