1 files changed, 3 insertions, 2 deletions

diff --git a/arch/xtensa/kernel/ptrace.c b/arch/xtensa/kernel/ptrace.c
index 9ef07a4dd2a2..2659efdd4e99 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;