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[MIPS] unwind_stack(): return ra if an exception occured at the first instruction

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Signed-off-by: Franck Bui-Huu <vagabon.xyz@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Franck Bui-Huu 2006-08-18 16:18:07 +02:00 committed by Ralf Baechle
parent f83b854a1d
commit 1fd6909802
1 changed files with 5 additions and 2 deletions
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7
arch/mips/kernel/process.c
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@ -465,8 +465,11 @@ unsigned long unwind_stack(struct task_struct *task, unsigned long *sp,
if (!kallsyms_lookup(pc, &size, &ofs, &modname, namebuf))
return 0;
if (ofs == 0)
return 0;
/*
* Return ra if an exception occured at the first instruction
*/
if (unlikely(ofs == 0))
return ra;
info.func = (void *)(pc - ofs);
info.func_size = ofs; /* analyze from start to ofs */