fix undefined reference to user_shm_unlock
[linux-2.6.git] / ipc / compat.c
index fa18141..ab76fb0 100644 (file)
@@ -225,7 +225,7 @@ static inline int put_compat_semid_ds(struct semid64_ds *s,
        int err;
 
        if (!access_ok (VERIFY_WRITE, up, sizeof(*up)))
-               err = -EFAULT;
+               return -EFAULT;
        err  = __put_compat_ipc_perm(&s->sem_perm, &up->sem_perm);
        err |= __put_user(s->sem_otime, &up->sem_otime);
        err |= __put_user(s->sem_ctime, &up->sem_ctime);
@@ -542,6 +542,8 @@ static inline int put_compat_shminfo64(struct shminfo64 *smi,
 
        if (!access_ok(VERIFY_WRITE, up64, sizeof(*up64)))
                return -EFAULT;
+       if (smi->shmmax > INT_MAX)
+               smi->shmmax = INT_MAX;
        err  = __put_user(smi->shmmax, &up64->shmmax);
        err |= __put_user(smi->shmmin, &up64->shmmin);
        err |= __put_user(smi->shmmni, &up64->shmmni);
@@ -557,6 +559,8 @@ static inline int put_compat_shminfo(struct shminfo64 *smi,
 
        if (!access_ok(VERIFY_WRITE, up, sizeof(*up)))
                return -EFAULT;
+       if (smi->shmmax > INT_MAX)
+               smi->shmmax = INT_MAX;
        err  = __put_user(smi->shmmax, &up->shmmax);
        err |= __put_user(smi->shmmin, &up->shmmin);
        err |= __put_user(smi->shmmni, &up->shmmni);