MIPS: fix kernel_stack_pointer()

MIPS always save kernel stack pointer in regs[29]

Signed-off-by: Huang Pei <huangpei@loongson.cn>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>

diff --git a/arch/mips/include/asm/ptrace.h b/arch/mips/include/asm/ptrace.h
index 1e76774b36ddf28c4ce72ca0a9ed4c8655ded6c9..daf3cf244ea972c9a8bf134a09fa081931645425 100644 (file)
--- a/arch/mips/include/asm/ptrace.h
+++ b/arch/mips/include/asm/ptrace.h
@@ -53,7 +53,7 @@ struct pt_regs {
 
 static inline unsigned long kernel_stack_pointer(struct pt_regs *regs)
 {
-       return regs->regs[31];
+       return regs->regs[29];
 }
 
 static inline void instruction_pointer_set(struct pt_regs *regs,