diff options
Diffstat (limited to 'drivers/staging/android/ashmem.c')
| -rw-r--r-- | drivers/staging/android/ashmem.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/drivers/staging/android/ashmem.c b/drivers/staging/android/ashmem.c index f5b5bec6f3c1..013b33760639 100644 --- a/drivers/staging/android/ashmem.c +++ b/drivers/staging/android/ashmem.c @@ -703,16 +703,14 @@ static int ashmem_pin_unpin(struct ashmem_area *asma, unsigned long cmd, size_t pgstart, pgend; int ret = -EINVAL; + if (unlikely(copy_from_user(&pin, p, sizeof(pin)))) + return -EFAULT; + mutex_lock(&ashmem_mutex); if (unlikely(!asma->file)) goto out_unlock; - if (unlikely(copy_from_user(&pin, p, sizeof(pin)))) { - ret = -EFAULT; - goto out_unlock; - } - /* per custom, you can pass zero for len to mean "everything onward" */ if (!pin.len) pin.len = PAGE_ALIGN(asma->size) - pin.offset; |