[IRDA]: Fix rfcomm use-after-free

[pandora-kernel.git] / kernel / futex_compat.c

diff --git a/kernel/futex_compat.c b/kernel/futex_compat.c
index dff27c4..f792136 100644 (file)
--- a/kernel/futex_compat.c
+++ b/kernel/futex_compat.c
@@ -144,19 +144,20 @@ asmlinkage long compat_sys_futex(u32 __user *uaddr, int op, u32 val,
        struct timespec ts;
        ktime_t t, *tp = NULL;
        int val2 = 0;
+       int cmd = op & FUTEX_CMD_MASK;
 
-       if (utime && (op == FUTEX_WAIT || op == FUTEX_LOCK_PI)) {
+       if (utime && (cmd == FUTEX_WAIT || cmd == FUTEX_LOCK_PI)) {
                if (get_compat_timespec(&ts, utime))
                        return -EFAULT;
                if (!timespec_valid(&ts))
                        return -EINVAL;
 
                t = timespec_to_ktime(ts);
-               if (op == FUTEX_WAIT)
+               if (cmd == FUTEX_WAIT)
                        t = ktime_add(ktime_get(), t);
                tp = &t;
        }
-       if (op == FUTEX_REQUEUE || op == FUTEX_CMP_REQUEUE)
+       if (cmd == FUTEX_REQUEUE || cmd == FUTEX_CMP_REQUEUE)
                val2 = (int) (unsigned long) utime;
 
        return do_futex(uaddr, op, val, tp, uaddr2, val2, val3);