1 files changed, 2 insertions, 3 deletions

diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index 4764bd9ccee8..c34db4e868fa 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -327,7 +327,7 @@ asmlinkage void __exception do_undefinstr(struct pt_regs *regs)
                 if ((instr & hook->instr_mask) == hook->instr_val &&
                     (regs->ARM_cpsr & hook->cpsr_mask) == hook->cpsr_val) {
                         if (hook->fn(regs, instr) == 0) {
-                                spin_unlock_irq(&undef_lock);
+                                spin_unlock_irqrestore(&undef_lock, flags);
                                 return;
                         }
                 }
@@ -509,7 +509,7 @@ asmlinkage int arm_syscall(int no, struct pt_regs *regs)
          * existence.  Don't ever use this from user code.
          */
         case 0xfff0:
-        {
+        for (;;) {
                 extern void do_DataAbort(unsigned long addr, unsigned int fsr,
                                          struct pt_regs *regs);
                 unsigned long val;
@@ -545,7 +545,6 @@ asmlinkage int arm_syscall(int no, struct pt_regs *regs)
                 up_read(&mm->mmap_sem);
                 /* simulate a write access fault */
                 do_DataAbort(addr, 15 + (1 << 11), regs);
-                return -1;
         }
 #endif