diff options
| -rw-r--r-- | drivers/staging/android/ion/ion.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/staging/android/ion/ion.c b/drivers/staging/android/ion/ion.c index 4adb1138af09..f2b875ccf388 100644 --- a/drivers/staging/android/ion/ion.c +++ b/drivers/staging/android/ion/ion.c @@ -606,6 +606,9 @@ static void *ion_buffer_kmap_get(struct ion_buffer *buffer) void *vaddr; if (buffer->kmap_cnt) { + if (buffer->kmap_cnt == INT_MAX) + return ERR_PTR(-EOVERFLOW); + buffer->kmap_cnt++; return buffer->vaddr; } @@ -626,6 +629,9 @@ static void *ion_handle_kmap_get(struct ion_handle *handle) void *vaddr; if (handle->kmap_cnt) { + if (handle->kmap_cnt == INT_MAX) + return ERR_PTR(-EOVERFLOW); + handle->kmap_cnt++; return buffer->vaddr; } |