diff options
| -rw-r--r-- | arch/ia64/kernel/ptrace.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/arch/ia64/kernel/ptrace.c b/arch/ia64/kernel/ptrace.c index 00f803246948..122444a97897 100644 --- a/arch/ia64/kernel/ptrace.c +++ b/arch/ia64/kernel/ptrace.c @@ -951,10 +951,14 @@ access_uarea (struct task_struct *child, unsigned long addr, return 0; case PT_CR_IPSR: - if (write_access) - pt->cr_ipsr = ((*data & IPSR_MASK) + if (write_access) { + unsigned long tmp = *data; + /* psr.ri==3 is a reserved value: SDM 2:25 */ + if ((tmp & IA64_PSR_RI) == IA64_PSR_RI) + tmp &= ~IA64_PSR_RI; + pt->cr_ipsr = ((tmp & IPSR_MASK) | (pt->cr_ipsr & ~IPSR_MASK)); - else + } else *data = (pt->cr_ipsr & IPSR_MASK); return 0; |