From 2d4b6c9aeb94cb9cb5c250f23e81e6d00b461372 Mon Sep 17 00:00:00 2001 From: Nicolas Pitre Date: Thu, 21 Aug 2008 23:22:49 +0100 Subject: [PATCH] [ARM] 5221/1: fix ldm/stm emulation for kprobes Logic for the p bit was reversed. Signed-off-by: Nicolas Pitre Signed-off-by: Russell King --- arch/arm/kernel/kprobes-decode.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm/kernel/kprobes-decode.c b/arch/arm/kernel/kprobes-decode.c index b4565bb133c..da1f94906a4 100644 --- a/arch/arm/kernel/kprobes-decode.c +++ b/arch/arm/kernel/kprobes-decode.c @@ -488,7 +488,7 @@ static void __kprobes simulate_ldm1stm1(struct kprobe *p, struct pt_regs *regs) if (!ubit) addr -= reg_count; - addr += (!pbit ^ !ubit); + addr += (!pbit == !ubit); reg_bit_vector = insn & 0xffff; while (reg_bit_vector) { @@ -503,7 +503,7 @@ static void __kprobes simulate_ldm1stm1(struct kprobe *p, struct pt_regs *regs) if (wbit) { if (!ubit) addr -= reg_count; - addr -= (!pbit ^ !ubit); + addr -= (!pbit == !ubit); regs->uregs[rn] = (long)addr; } } -- 2.20.1