1 files changed, 2 insertions, 2 deletions

diff --git a/arch/x86/kernel/ptrace_64.c b/arch/x86/kernel/ptrace_64.c
index 86321ee6da93..607085f3f08a 100644
--- a/arch/x86/kernel/ptrace_64.c
+++ b/arch/x86/kernel/ptrace_64.c
@@ -103,7 +103,7 @@ unsigned long convert_rip_to_linear(struct task_struct *child, struct pt_regs *r
 
                 seg &= ~7UL;
 
-                down(&child->mm->context.sem);
+                mutex_lock(&child->mm->context.lock);
                 if (unlikely((seg >> 3) >= child->mm->context.size))
                         addr = -1L; /* bogus selector, access would fault */
                 else {
@@ -117,7 +117,7 @@ unsigned long convert_rip_to_linear(struct task_struct *child, struct pt_regs *r
                                 addr &= 0xffff;
                         addr += base;
                 }
-                up(&child->mm->context.sem);
+                mutex_unlock(&child->mm->context.lock);
         }
 
         return addr;