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-rw-r--r--arch/xtensa/kernel/ptrace.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/xtensa/kernel/ptrace.c b/arch/xtensa/kernel/ptrace.c
index 9ef07a4dd2a..2659efdd4e9 100644
--- a/arch/xtensa/kernel/ptrace.c
+++ b/arch/xtensa/kernel/ptrace.c
@@ -22,6 +22,7 @@
#include <linux/smp.h>
#include <linux/smp_lock.h>
#include <linux/security.h>
+#include <linux/signal.h>
#include <asm/pgtable.h>
#include <asm/page.h>
@@ -239,7 +240,7 @@ int sys_ptrace(long request, long pid, long addr, long data)
case PTRACE_CONT: /* restart after signal. */
{
ret = -EIO;
- if ((unsigned long) data > _NSIG)
+ if (!valid_signal(data))
break;
if (request == PTRACE_SYSCALL)
set_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
@@ -269,7 +270,7 @@ int sys_ptrace(long request, long pid, long addr, long data)
case PTRACE_SINGLESTEP:
ret = -EIO;
- if ((unsigned long) data > _NSIG)
+ if (!valid_signal(data))
break;
clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
child->ptrace |= PT_SINGLESTEP;